Welcome to weight gaming @Sytrix.
There’s honestly a lot of games that fit this. Just to mention a few. These are still WIP.
Games like Tramp, Fill me up, Chunky Cheerleader, feature female protags that do/can turn into feedees and revolve around the protag gaining and npcs.
Something like Fatgeria will have you filling the shoes of a male protagonist feeding Russian nobles up and turning them into feedees.
Trapped Together has you as a male protag stuck with three roommates and feeding and fattening them up. With parts two and three to be later released with sizes up to immobility. There’s not a lot in the way of descriptions of food as the feeding, outside of narrative bits, is mini game related, but there’s plenty of feeding and stuffing.
Fattening Career has you playing as a male protag with 20+ different girls in the game, lots of stuffing and feeding in the game, and some girls are outright feedees to the protag.
text-adventure games are often good sources of what you’re looking for as well.
Honestly a lot of games on the site can fall into what you’re looking for. I’ve also made a list of games I’d recommend for new users of the site, which might be worth checking out. It features over a hundred games and might be an easy way to find something you’re interested in. Krod’s weight gain games recommendation list - Projects - Weight Gaming