So this kind of question I need a lil clarity with typically, if we're talking among friends/mutual furs out there or characters in media! I'll answer on both, but know my answers are at time of writing and may be subject to change in the future.

For who I'd be chilling inside, the first person that comes to mind is Mukiro! He's a supremely wonderful somali cat that prefers safe endo vore. He's always comforting and lovely to be around! Another friend is Ily, very shy, very cute, I'm not sure if he does much predding, but he's someone I'd trust and chill in! For characters in media, C.J. from Animal Crossing would be a cute one to chill inside of, though I can see that being more accidental somehow! Perhaps Big the Cat too, such a chill friendly cat dude.

Whom I'd have chill inside of me? There's a few folks, a red dragon I call Henkou who likes to be a tiny snack, relatably a little kitsune who goes by Fizzle is similar! On a permanent or long term basis, I'd love to have Ruka chill in my gut! Seasonally, I also have Dewwy every 4 months, he's a delicious ott~ One more I want to say is Chris (PieMan) he's a cutie fox that needs to be protected!
Media characters, I'd want to chill in my gut... Crash Bandicoot? Bugs Bunny? Maybe even Goofy... Not something I think about in regards of folks chilling in my gut. The only rule I have is no footwear inside!

Now for the digestion side of things! Whom would I let gurgle me? My boyfriend Phyre of course! He's only gonna get bigger! Kero, it's impossible to say no to, impossible! Same with Kibibyte if I'm honest, some I swoon for I'd let just destroy me. Cerin I would, but I'd be feisty about it! Sometimes. And since they're on my mind (I doubt they'll see this) I'm gonna say Retnacinno and Kamunt, they're both hot with how they want to keep their prey, love their prey and utterly devour their prey~
Back on media characters, I wanna be gurgled by Infinite the Jackal, no question about it. Gargomon is a strong, solid option too! Perhaps Latch from Lethal League too if I'm being totally honest. Also my first character crush, Dingodile. I'd have to mention him!

As for whom I'd digest... I'd gurgle that green dragon FT! Easily! How could I not want to eat that tasty derg? My friend Tani I'd love to gurgle too! There's this goat I know called Key I'd want to get my jaws around and this big pooka bunny Jaelen I haven't had this guy in some time, that should certainly change! Oh, and Jay (tmanfox7) I've been meaning to eat for the longest time! He can't evade me forever!
As for media characters to gurgle... this might be the eevee form in me creeping out but I'd love to gurgle buisels! All of them! Yoshi would be a fun one to gurgle too. Also Daxter, I love that little ottsel and would love to eat him too! Also, this might be an unexpected one, but Alibaba from Magi: Labyrinth of Magic and Ugo (the genie) from the same anime.

For all of these, definitely have more friends to add onto all these lists and even mix onto other lists! (Like Muki could chill in me or me chill in him!) But I don't want this to go on as long as it already has. So yeah, here's just the tip of the vore iceberg of friends I'd eat or get eaten by, whether chill or gurgled! And some media characters, I'm more picky about them...