[Closed] river call and question about alternative line

I think raising immediately is fine on the flop.

We have value vs all his missed A-high Gutters and pocket pairs which he'll see 2 more streets with most likely and he may even call us down with those hands doing the standard "Put you on JT" and you're right that we pretty much never get bet-3-bet semi-bluffed on this board so if he does come over the top letting our hand go on the turn isn't going to be a tragedy in most cases (We can't let go on flop becasue of outs to improve)

That said we are only slightly ahead of his percieved range for 3-betting your UTG raise (like 52/48) but if you're content folding if he puts in more action, this is fine and I think ok on this board.

As played I think you played it fine, especailly given he 3-bet you UTG raise. He needs to be bluffing a pair 1 in 7.5 times for us to breakeven and I'm not sure he's going to be on that level, although he certainly looks aggressive but he's probably just been running well.