First of all, welcome. I'm decently new here as well, or at least I've recently started posting. My thoughts:
Pre-flop – Relevant question: What are his 3-bet tendencies like? If he’s a typical 1-2 player, his 3-bet range is likely QQ+, AK, maybe JJ, AQs. That will help us later on in the hand. I’m moving forward with this assumption for the rest of my thoughts in this hand. I think your raise is fine, personally I would have made it smaller like 9, but if everyone has $700 on the table, this is pretty much negligible.
Flop is so dry, even with 3 opponents, I’m ok with c-betting. I think you could have accomplished the same thing by betting 25-30, rather than betting 36, but again, nothing I can see that’s too out of the ordinary here. His range after this call is getting a bit more definied, in my opinion. A call is pretty strong here, imo, because he’s got two players left to act behind him, so I think that eliminates some of the air and underpairs that he’s calling you with.
Turn – What is your rationale for betting here? Nothing really changed the dynamic of the hand, except for the fact that you picked up a flush draw, so the hands that he’s calling you on the flop with, like A9 or T9 and obviously sets and weird 2 pairs are still calling here, you might get 77 or something of that nature to fold. I think I would bet as well, but checking here isn’t the worst option. I’m just curious as to the reason you chose to bet.
The range I’m assigning him after calling this bet (thoughts?): A9, Q9*, J9, T9, 89, 33, 44, 99, 56,34,
*Although combinatorically very unlikely
River – Even with this range, the way the hand plays out, I still think it’s a check/fold for this reason: The texture of the board is so dry, that calling two streets weights his hands towards his upper range. Not only that, but you’ve over repped your hand. By betting a 3rd time, it’s hard to get called by worse hands like A9. Think about having A9 (which is just about in the middle of his range here) and facing a third bet here, which would be, I’m assuming by your betting patterns, somewhere around $200. That’s going to be REALLY hard to call, and essentially you’re turning your hand into a bluff.
I changed my mind on what I would do about 3 times throughout this hand analysis, so I’m definitely on the edge. I’m interested in seeing what others think, but for me, I think it’s a check/fold