[5NL] 77 UTG line check.

Villain was 26/20/15 (3bet) through 172 hands. 60% cbet, 9/15. Had only seen villain 3bet with KK & AKo.

PokerStars - $0.05 NL (6 max) - Holdem - 6 players
Hand converted by PokerTracker 4

SB: $2.91
BB: $14.43
Hero (UTG): $9.74
MP: $2.41
CO: $28.20
BTN: $10.66

SB posts SB $0.02, BB posts BB $0.05

Pre Flop: (pot: $0.07) Hero has 7 7

Hero raises to $0.20, fold, CO raises to $0.50, fold, fold, fold, Hero calls $0.30

Flop: ($1.07, 2 players) 9 5 7
Hero checks, CO bets $0.75, Hero calls $0.75

Turn: ($2.57, 2 players) 8
Hero checks, CO bets $0.85, Hero raises to $2.40, CO calls $1.55

River: ($7.37, 2 players) J
Hero bets $6.09 and is all-in, CO calls $6.09

Pre - When villain 3bets pre I put him on TT+, AQs+, KQs, AQo+, KQo.

Is this range too tight for a 26/20/15? Could we include 88+, KJs, QJs, JTs?

Flop - He cbets. With a 60% cbet I think we can include some air in his range. I think he probably cbets with nearly all the original pre flop range I gave villain on this flop, maybe excluding KQ.

Turn - He bets again and calls a c/r. I think his range narrows down to TT+. Although I am not sure if villain would 3bet with KK+. Is it possible to include 88/99 in villain's range?

River - I shove for pure value. The only hands that I think villain could have that beat me is TT & JJ. Possibly 88/99 but I think that's unlikely.

Thoughts?