opponent is 26/18/2.5 over 628 hands, he has been active and taking down lots of pots postflop.
My reasoning is that he probably c/r his big hands on this board.
Bad spot?
Probably is, I doubt he is donking out with 99-KK here.

Party Poker $200 No Limit Hold'em - 6 players
The Official 2+2 Hand Converter Powered By DeucesCracked.com

CO: $207.00
Hero (BTN): $200.00
SB: $138.70
BB: $165.00
UTG: $26.00
MP: $384.20

Pre Flop: Hero is BTN with 7 6
1 fold, MP raises to $7, 1 fold, Hero raises to $24, 2 folds, MP calls $17

Flop: ($51.00) 8 3 A (2 players)
MP bets $33, Hero raises to $92

with what hands could he call ur 3bet? What is his fold to 3bet ?

fold to 3b is 53% so his range is kinda wide going to the flop.

I think that raise on the flop is +EV.

are we raising on flop, and if he calls, shutting down for the rest of the hand?

yeah shut down after that, we don't have any FE at all if he calls flop.

i think calling pf > 3bet pf. 53% fold to 3bet is pretty low imo
i like your raise, maybe some more, like $100. that amount is scarier

Seems like his hand is most likely hearts, air, or like a AQ/AK going for some kind of mindfck bet. This raises the problem of that he's getting 3-1 with hearts and will assume he'll stack us if he hits so theres no way he lays down hearts to this flop raise. Assuming the only hands we can get him to fold that he would donkbet here are air, the profitability of this raise comes down to how likely you think it is that he would lead this flop with nothing. I can't imagine him leading some sort of middle strength hand here, it's possible though I guess

call me a nit but against someone who is calling my 3bets often i dont' 3bet small suited connectors, even with position. Not a huge fan of flop, but if i do raise i think i'm raising to like $80, 92 is a bit unnecessary.

Because villain is calling with crap, we can just lower our TPTK standards and go farther with TPGK than we usually would because we know villains holdings are trash. 3b KT/A9s/QJ > SCs here imo.

nh

3b is fine in position if he calls a ton. you should be 3betting a wide range in position vs people who play 3b pots OOP a lot. 3betting would be bad if he calls a ton and you're OOP. imo.

Villian is raising 18% of his hands and folding 1/2 to 3 bet. So whats left is his top 9% of hands. He's not that wide going to flop.

Your 3bet descision here should be based on how much non-showdown equity you think you'll have going to the flop. An aggro-LAG as you put it is not going to give you credit just cause you repopped him IP. After all he does it all the time wide so in his mind he'll project his style of play onto you as well. With 76s you won't be showing down a winner often enough to inflate the pot preflop. Now you're in a bad spot where its just tough to say if that raise is +EV. As played pre, I much prefer that raise if the board was rainbow. He could have hearts (which could easily get shipped in over the top of your raise, at the very least he calls, and then lol if it gets checked down and his QhJh is a winner), or even if he has a smallish pp he could talk himself into not folding cause you could have hearts, not to mension even aggro-LAGs hit tp too.

Smooth call pre and let the big implied odds of 76s go to work for you, since aggro-LAGs have forgotten how to fold these days...