I really dont know how to play theese 3-bet pots oop, i often give up, but people bluffs too much then, they also calls very wide nowday.
On this flop 89T i have a gutshot 2 overs and a BDFD, i bet half pot (perhaps very suspect) and get a call.
The Q falls on turn and guy dont bet after checked, so i bet the river after doubling the Q.
Now he raises, neither he has a FH now and feard the J on turn or he has the J and dont want me to fold the turn or he bluffs (but i dont think this is really the case).
Would you check the river, bet the turn or check/fold the flop, i really have troubles with theese SB 3-bets nowdays, people tell me to 3-bet every hand i play but i searched in my database and im + with calling.

PokerStars - $0.10 NL FAST (6 max) - Holdem - 6 players
Hand converted by PokerTracker 4

BTN: 100 BB (VPIP: 34.62, PFR: 25.00, 3Bet Preflop: 6.67, Hands: 53)
Hero (SB): 108.5 BB
BB: 101.7 BB (VPIP: 22.31, PFR: 19.81, 3Bet Preflop: 9.92, Hands: 665)
UTG: 120.8 BB (VPIP: 15.22, PFR: 13.04, 3Bet Preflop: 10.53, Hands: 46)
MP: 102.5 BB (VPIP: 18.69, PFR: 13.64, 3Bet Preflop: 10.20, Hands: 552)
CO: 101.5 BB (VPIP: 19.73, PFR: 17.04, 3Bet Preflop: 3.37, Hands: 235)

Hero posts SB 0.5 BB, BB posts BB 1 BB

Pre Flop: (pot: 1.5 BB) Hero has Q A

fold, fold, fold, BTN raises to 2 BB, Hero raises to 8 BB, fold, BTN calls 6 BB

Flop: (17 BB, 2 players) 8 T 9
Hero bets 8.1 BB, BTN calls 8.1 BB

Turn: (33.2 BB, 2 players) Q
Hero checks, BTN checks

River: (33.2 BB, 2 players) Q
Hero bets 15.8 BB, BTN raises to 49.3 BB, fold

BTN wins 61.9 BB

I personally tend to just give up on this flop, but others might disagree with me.

Check/ call flop

Check/fold flop.