With a group that large, I would rather go with lighter game. I would have a lot of fun running InSPECTREs with a larger group. Even with rules light systems, it is hard to give the spotlight and turn-based games can get pretty sloggy. InSPECTREs is great as a rules light, light hearted, beer-and-pretzels party game.
If you want something more serious, Alice is Missing is a good game for a one shot with larger groups, but doesn't have a lot of replayability.
Dialect can also work very well with larger groups, but it pushing the boundries of what many people expect from a TTRPG. But with the right group of players, it can deliver a powerful experience.
A bit more traditional but easier to run for larger groups than most TTRPGs is Paranoia, which was mentioned above.