Hero (~150bb) Button: Ah9s
Villain 1 (~200bb) UTG
Villain 2 (~150bb) CO
Blinds 100/200
deepstack live MTT (15min levels) 6 handed

Hero has been playing tight, not in many hands

Villain 1 is super laggy, playing around 60% of hands (tournament has been going 45mins), seems to limp weak and open stronger hands, also is willing to make aggressive moves and bluffs. Have seen him show cards once. In that hand he was heads up oop and x/called a 2/3 pot bet otf and 1/2 pot on turn with a gutshot only to bet around 2/3 pot on the river with air when checked to, he got a fold and he showed his bluff. He has been betting into multiway pots a lot and all round seemed to be making super loose calls.

Villain 2 is more tight solid and have seen him call multiway then fold to a reraise in 2 other hands, one pre-flop, other otf on a dry board. No other reads.

Action:
Villain 1 limps, folds to Villain 2 who limps, folds to Hero who raises to 1000. Folds to Villain 1 and 2 who call.
Flop (3300): As2c3c
Villain 1 donks for 1500, Villain 2 calls. Hero raises to 6000.
Villain 1 calls, Villain 2 folds.
Turn (16800) 8d
Villain 1 checks. Hero checks.
River (16800) 4s
Villain 1 bets 7500
Hero?

Preflop is marginal but my thought was to isolate against Villain 1 whose limping range I am ahead of. Villain 2 I am also ahead of his range, but was hoping for him to get out of the way preflop.

On the flop I decide to raise to get villain 2 to fold his draws and underpairs and isolate for value against villain 1 whose calling range includes draws, worse Aces/mid pocket pairs/sets I am mostly discounting AK,AQ,AJ,AT because I think he likely opens these pre.

Villain 1 was talking about how he didn’t think I had it as soon as I made the flop raise and kept talking ott. I check the turn because I didn’t want to be exposed to a reraise or that he was trapping with a monster. My idea was to check and use my hand to bluff catch if he took a shot at the river which he has done on a previous hand. But in hindsight I think this is a bet because a check weakens my line a lot, leaving me unsure of where I am on the river while also giving a free card to his draws.

Because of my check ott, his river bet range has some busted draws but also sets, straights, Ax and two pair. Unsure if he would be bluffing this river after my flop raise, but I still beat some of his value range of Ax?

Would love any feedback on my line on all streets and whether I am judging his range correctly

At what point in the hand did he say he didn't think you had it when you raised the flop?

He said that on the flop to a player sitting next to him immediately after I made the raise and action was on him. Sorry original post was confusing.