Not sure if I should pay off the river incase he's playing a flush really weird (have no hands on villain)

888 Poker - $1 PL Hi (6 max) - Omaha Hi - 3 players
Hand converted by PokerTracker 4

SB: $90.31 (VPIP: 34.62, PFR: 13.46, 3Bet Preflop: 4.17, Hands: 52)
Hero (BB): $113.13
BTN: $100.32 (VPIP: 43.48, PFR: 8.70, 3Bet Preflop: 0.00, Hands: 23)

SB posts SB $0.50, Hero posts BB $1.00

Pre Flop: (pot: $1.50) Hero has 8 K 8 J

BTN raises to $2.00, SB calls $1.50, Hero calls $1.00

Flop: ($6.00, 3 players) 7 6 4
SB checks, Hero checks, BTN checks

Turn: ($6.00, 3 players) A
SB checks, Hero bets $4.50, fold, SB calls $4.50

River: ($15.00, 2 players) A
SB bets $15.00, fold

SB wins $14.25

Seems like a pretty gross spot getting lead into on the river. If villain puts you on a lot of flushes and little of anything else he'll almost always be leading this river exclusively for value with a boat, if he thinks your turn stabbing range is a lot wider than just flushes (blockers, weakish hands, total bluffs) he's probably x/r river hoping to get a bet out of your flushes and air, but could conceivably lead as a bluff if your turn bet after flop check through range is sufficiently wide enough. I hate to fold here often since it seems so nitty but I think you'll be facing a tonne of boats. Don't see villain playing many flushes this way, with only real bluffs being some 764 blockers but I think it's very read dependent sometimes in this spot.

Lead flop, fold river.

I think you played it fine. He turns up with a boat here very often.

+1