We are 16 left of a 20€ 6max MTT (717 players at start). I'm 4th in chip.

Vilain is a fish, raising a lot from LP (he opens from 2BB to 3BB). He is defending a lot in this situation imo, any playable hand. He is running 37/22, 6.7% 3bet on 58 hands. Hero has a pretty standard image, a bit tricky (I doubled few hands later cold calling one of his open with AA)

Maybe just shoving against this guy was better OTF, because he is probably not folding DP+, but it was big and I wanted to keep hands like Tx or 89 in his range, and maybe inducing some light shoves. I don't know if he has a bluff raising range here. When he calls, I think his range is some TP, DP, maybe 77 (I think he is shoving 88/TT), maybe some combo draws like AJcc, AQcc, QJcc...

Not the best turn, 87, T8 and maybe 77 is probably a good part of his range for raise/calling the flop. That said I don't know if there is another option except to just shove (I can't really bet/fold) and hoping he hero us with AT, or 89 or his combo draws. I'm also not sure if his calling worst at this stage of the tournament, but as he is a fish I think he can.