I don't really see a fold with this hand given that we beat A2, dominate A6 and block 66. But I do think that we could find a fold with hands as strong as AK given the underbluffed nature of the situation.

He can be doing this with worse, he reps so narrow and you don't block any bluffs so I'd call. This river is a blank so if you call the turn raise with the impression that he has bluffs then you should be calling the river too. Agreed though that it is an underbluffed line but on this runnout I'd need pretty good reads on the player to make a fold with this hand.

It’s not super hard to find x/r bluffs on that turn I think, still probably somewhat underbluffed, also you should beat and chop w some value so quite easy call imo

Isnt it too optimistic to say that he is going to raise A2 for value? Because we are quite polarized on the turn by AJ+ and equity driven bluffs. So I would say its really close value bet on the turn with A2s, especially when we are quite deep -- imo he has to fold vs reshove. Even though he may raise some of these combos already on the flop. That being said A2s is pretty rare to see in this line.
About the A6s.. again I would say 50% of the time he is raising this combo already on the flop. Also think that its pretty ambicious to say, that he is raising this combo 100% of the time on the turn. At some non-zero frequency he might 3bet some of those suited Aces preflop.
As the result we need to find some bluffs to make a profitable calldown So the question is if he is going to raise the turn and bet the river with enough combodraws to justify a calldown on most runouts?
In addition: the turn raises are in general pretty underbluffed + the fact that our range is polarized and well protected makes me concerned if we really should be calling this turn?

At this stake I don't see many bluffs tbh. What I do as default is to consider this fact (at least in my pool) and check whether the player is very active, if he is, I can find a call, if not, you can confortably fold.
Since (in my pool) players aren't capable of bluffing often, they lean toward value. Incredibly, when I got raised, they have the narrow range they rep.

As played, I would call turn and fold river

no reads, call and focusing on next spot. Folding looks like a bigger mistake than calling vs unknown(but difference maybe few blinds). Yeah pool is underbluffing, but that's not strong enough read to be folding as strong as this.

I dont think I can get away with this, this hand good for good bluff catching specially when the river missed