What do you think of my line and river decision? I know sample is too small but he seemes to be pretty nitty.
I put him on the range: AQ+, TT+ but I don't think he triple barrels with 3rd pair so imo on the river looks like AQ,AK QQ AA, I thought also about KK as I can be perceived by him as setminer with 77-JJ.
I have 2:1 on the riv so I think can call as he has 8 combos of AK, (and maybe KK if I'm right) What about raising here? is he going to call with AK any time?

PokerStars - $0.05 NL - Holdem - 7 players
Hand converted by PokerTracker 4

MP: $3.74 (VPIP: 54.55, PFR: 22.73, 3Bet Preflop: 11.11, Hands: 23)
Hero (CO): $5.86
BTN: $4.47 (VPIP: 9.38, PFR: 3.13, 3Bet Preflop: 0.00, Hands: 32)
SB: $1.63 (VPIP: 47.83, PFR: 0.00, 3Bet Preflop: 0.00, Hands: 23)
BB: $4.00
UTG: $5.12 (VPIP: 4.17, PFR: 4.17, 3Bet Preflop: 0.00, Hands: 24)
UTG+1: $4.60 (VPIP: 20.00, PFR: 0.00, 3Bet Preflop: 0.00, Hands: 15)

SB posts SB $0.02, BB posts BB $0.05

Pre Flop: (pot: $0.07) Hero has 9 9

UTG raises to $0.15, fold, fold, Hero calls $0.15, fold, fold, fold

Flop: ($0.37, 2 players) A 9 Q
UTG bets $0.20, Hero calls $0.20

Turn: ($0.77, 2 players) A
UTG bets $0.55, Hero calls $0.55

River: ($1.87, 2 players) 6
UTG bets $1.34, Hero calls $1.34

As played I would the raise river to around $2.80 since UTG is going to most likely call and have AK here most of the time. However, I would have raised the flop with bottom set so you don't end up with tough decisions on later streets

I would raise flop because it's hard for him to get away if he has a decent ace or a flush draw. It helps if you balance your flop raise range with some bluffs. Finding good bluff raise spots on the flop isn't that hard.

Definitely raise turn, especially as played, because he can't get away from trip aces and is likely to stack off. If he has better hand it's just a cooler, and there's plenty of worse aces to get value from.

On the river, raise all in to get value from AK, AJ, AT. Of course he'll call if he has AK, and most likely almost any ace. He's unlikely to check trip aces on the river when all the draws missed and he already led flop and turn, so there's plenty that you beat which will call a raise given he'll have good odds.