Firstly, looks like a pretty fishy table

I like your 3bet, either that or fold, but it's fine. I don't like SB's raise size.

Flop is a situation where we have the 3 of a kind with top kicker vs potentially 2 weaker players.
So here I'd probably go larger than what you did just for pure value. They could have some KQ's, QJ's here, a worse T or 78 etc.
OR Even they might slowplay some big pairs if we're lucky and then go nuts.

I think 2.20 at least could be a decent size and makes the pot $1 bigger on the turn. I think we get a lot of positives from that, like making opponent feel more committed, SPR easier to stack them.

J is probably worst turn actually! Completes some draws and potentially gives FH but I think we have to go with it given they are fish.
Maybe this guy has some sort of 9 like A9 or 79s? Other than that I don't really see what he calls then fold the turn with. Odd.

Preflop I'm I like the raise. I could get on board with a call as well. Sb made it super small here so even though ATo is mediocre, it's hard to go wrong for that price.

Flop I would try to plan out my betting strategy for the next streets since stack sizes are a bit awkward due to the 3 way 3bet pot. You can either go small 3 times (assuming 1 player calls) or you can go larger twice. Considering how dry the board is and how strong your hand is I would likely plan for small bets.

I'd go slightly smaller on flop and turn to avoid the river bet of 3.5 into 13 but in this situation I don't think it matters too much. Just betting until all the money goes in is a good strat here. The sizings start to matter if you show up in the spot with some bluffs since bluffing 3.5 into 13 doesn't typically end too well..

This isn't the hand type I would prefer when we have two limpers in the pot, and SB's raise indicates he could be fishy so there's a chance we might end up in a four way pot with a hand that doesn't like it.

I would have usually bet bigger on the flop but understand what KDJ is saying. I think I would normally just go for two big streets here being up against bad players that will call a wider range than normal.