Hey,

Don't really know what is a good play in that spot, I think flop is standard and on the turn I should've probably bet more.

Facing the raise I think he definitely has 44 and AT. The rest of the range is really hard to figure out as I don't really know how people play SB.
I would not assume he has TT in a flatting range, I also don't think he's playing A4o, and A4s is a 3bet preflop on some frequency.
I believe he has more A4 there than TT, let me know if that makes sense.

From the bluff side of his range I would say he has like 78c, KJc and QJ of all suits except for diamonds.

In general my understanding of SB flatting range is 22-99 and suited broadways, sometimes suited connectors.
Maybe A2-A5s which I would normally 3bet and AT(??)

Let me know what you think for me its super confusing so some of the stuff I wrote could be nonsense.

Cheers !