This is a tough one, assuming you mean I should pick a single one… it feels as though it’s tied between Mash and Ciel…
If you made me choose one, I’d probably pick Mash. If I’m gonna be pred, then I’d like my prey very subby. And Mash seems fun to poke and prod until her semi-professional demeanor is broken. Delicious kouhai having a nervous smile plastered on her face when she hears my stomach growl

For honorable mentions:
(I suppose most of my favs could make good prey, but I usually default to them being pred. Especially since soft doms tend to be my favorite archetypes)
Ciel, as I mentioned, was not actually I character I initially thought of as prey. I always saw her as a switch, because she’s been utilized as an unwilling prey very often (which is sad, i need more pred senpai…). But a pred leaning switch is how I see her. I’ve had someone suggest feeder Ciel stuffing me and then feeding herself to me after… you guys are simply too nice for indulging my weirdo degeneracy.
Since I talked about Uma Musume last time, I’ll subject you guys to more horse game nonsense. Sorry, I know it’s already crawling all over the general belly kink scene as of now. I’ve always seen Jungle Pocket as a bit of a bratty sub even outside of fetish content, and she naturally come to be prey in any fantasy she might come up in. Especially with Tachyon looking to annoy her… but that’s besides the point. I’ve seen some images where they give Jungle Pocket some more pronounced muscles… and it just makes me wonder how filling she’d be with a little meat on her bones.
Belno also comes to mind from Uma Musume, but I’ve talked enough about her already. Cute girl being endo’d by me, yada yada yada…
Manako from Mon Musume has put a curse on me, despite that series being completely terrible by all standards and accounts, her and Tionishia have been stuck in my head forever. We won’t have to worry about Manako getting self conscious or bumping into anything with her poor depth perception if I just have that cyclops girl as a snack…

I have been exploring it a little more, but I’m still learning about some of the popular dynamics involved. I’m also more into the cute and fluffy stuff rather than the likely more interesting cruel/sadistic types of scenarios. As a result of this, most the ideas in my head have to do with specific characters and ships. I’ll try and keep the details to the minimum on the characters writing, so it can be looked at by someone who possibly hasn’t engaged with the stuff I’m talking about.

I’ve talked a lot about stuffing and Uma Musume before, since they literally have scenes in all the media that is basically fetish bait. But, to move to feederism, I’m thinking about these athletes getting a little bigger post-retirement… and recently, my Belno/Oguri brainrot is creeping up again (me and my friends are planning on catching up with Cinderella gray). All you need to know is that Oguri (an aloof Kuudere-esque character from the countryside) participates in races and has a big appetite, and Belno doesn’t race and instead supports Oguri and acts as a pseudo-trainer beside her real one.
I made a post about them with the idea that Belno has a belly stuffing kink that Oguri unintentionally indulges, due to being oblivious of it. What I’m currently imaging is something similar, replaced with weight gain that leads to feederism. I’m thinking about Oguri getting real comfortable post-retirement, and having Belno as a bystander that’s feeling guilty about how much she enjoys Oguri getting pudgier every time they make time to reunite…
I really like the idea of this eventually turning into something where Oguri finds out about the attraction (whether or not it’s at Belno’s admission or simply because Oguri can’t be oblivious forever is something I debate…) and decides to indulge her more, even though she doesn’t have the kink. The idea being that she, 1. Enjoys eating a lot, and this gives her an excuse to pig out as often as she can, and, 2. Makes Belno, who she cares about, very happy… the scenario is basically just an even more complicated version of the stuffing post I made a while back.
I also think about Special Week x Silence Suzuka but… honestly, considering their dynamic, there’s not much to say besides Feedee Special week/Feeder Silence Suzuka. That’s really it. Fat Special Week is hot and so is doting Feeder Suzuka.

Also thought about Seika Ijichi x Kikuri Hiroi (which is honestly a ship I don’t usually care too much for). All you need to know for this is that Seika is a tsundere-ish big sis/onee sama type character that manages a music venue, and Kikuri is a drunkard (played for laughs) and bassist who’ve known each other for a while.
The idea is fairly simple, and is that Seika notices that Kikuri hanging around with her at the venue where food and drink is served + her already egregious drinking habits have caused her to ballon in weight fairly quickly. Seika becomes a sort of feeder through enabling the behavior, and has to hide her flustered state behind a practiced annoyed expression.

Not really a scenario per se, but I like ex-jock type things a lot. Especially for males. Fat + strong arms and a defined chest is super hot on a guy… soft, but strong…

Vore bonus:
Perhaps a devious observer feeds a reluctant pred until the weight gain keeps them pinned and impossible to resist further… feedings.

I’ve been slow with playing games, so this is roughly gonna be a description of what I’ve played in the last few months:

For Visual Novels (if you want to count that as a game) I’ve been reading Higurashi’s answer arcs! I’m close to the end of the 7th chapter, and the answer arcs are crazy good.

I spent a week playing Fate/Extella link, and beat it rather quickly since it’s a short game. It’s actually a very solid musou game when it comes to its combat and systems, and its customization is top notch… but it lacks worthwhile replayability that every other musou game has! It’s not all that fun to run through the extra missions when you remember all the cool modes other musou games have. But, I can play as Jeanne and Astolfo. That’s worth something. They’re both so cute… oughhh…

I’ve actually been pretty much ignoring fighting games for the past few months, mostly because college starting again knocked me out of the rhythm with going to local weekly tournaments. My friends really want me to come back, so off and on I’ve played some Under Night In-Birth with them. People on my account might know the game because I’ve made some serious post about it as well as horny posts (Yuzuriha is an awesome mentor character, and I need her to eat me… gentle pred Yuzuriha please save me…)

I was playing Metroid Zero mission a while back, and got close to the end when I just started getting busy again. It’s easy to pick up and play, so I should probably try finishing it soon.

Even though I wasn’t thinking I’d have time to play it, I recently got Bomb Rush cyberfunk. I actually haven’t played jet set radio before, I just thought the game looked cool and figured I’d play jet set radio later if I liked the gameplay style. I put a very small amount of time into it, and it’s cool.

I’ve also been meaning to start Nier Replicant eventually… but I’ve been busy with reading Visual Novels. When I finally finish the last of OG Tsukihime, I’m gonna read the fate remaster. I’m excited for that one…