BB vs SB, J9o defending

I think its a clear fold by river. He could be bluffing hes flush draws maybe for 3 streets. But by river you only beat pure bluffs and split with Jx hands. Unless its AJ, you loose to that as well.
All his value bets beat you, so I dont see +EV by calling OTR.
Vs unknown I would fold turn already, but since you had reads he double barrells alot, I guess you can call OTT.

I think pre, flop and turn are ok. OTR it depends a bit on villain. Regular players don't bluff that much but recreational players could have more bluffs. Also recreationals have the tendency to overvalue their hands. You hit a 2 pair there so I see some merit in calling, but against an unknown who could be more on the regular side (notice stack size) I think folding would be slightly better.

Emm, sorry. My 2pair are no good since paired board. All Kx and AJ, KJ, QJ, JT beat me.

Aaa yea of course, I misread the board.

Yeah rather a fold river, moreover with a spade in hand.