TP 3 barrel for value, but faced river raise.

Aj, at maybe a9 of hearts, few j high flushes maybe overplaying trips or a5 if he is calling down really light.
People calling every street against you to raise you on the river isnt a big concern, line is so strong and you have the very top of your range here, fold and if he is doing it light he will end up exploiting himself.

If you have other showdown hands on him look at those and from that it will become more obvious what hands he shows up with here.

River bet isnt great either just check call. Your running into mostly bigger hands when he calls. might actually get his draws to bluff by checking. But even still if he is passive he might just check back here a lot so maybe even check fold.

Bet flop and turn bigger and checkback river. No need to bet the river, you are not getting called by worse getting anything better to fold.

I would check back the river. I don't think we have 3 streets of value there.

You can xb river. not many weaker hands will call you 3 streets there.