Hero is LAG known for being overly aggressive in heads up pots. No read and minimal hands (<200) on the villian. I bet this flop because I am an aggressive player and tend to get overcalls from a lot of players. I decided to bet the turn because of how draw heavy it is and the fact I block the nut straight. Any comments on the turn bet or the sizing of the bet?

PokerStars - 800/1600 Ante 200 NL - Holdem - 8 players
Hand converted by PokerTracker 4

UTG+1: 41.74 BB
MP: 56.92 BB
MP+1: 65.62 BB
CO: 13.08 BB
BTN: 60.82 BB
SB: 26.16 BB
Hero (BB): 22.32 BB
UTG: 42.11 BB

8 players post ante of 0.13 BB, SB posts SB 0.5 BB, Hero posts BB 1 BB

Pre Flop: (pot: 2.5 BB) Hero has Q 9

fold, fold, fold, fold, fold, fold, SB calls 0.5 BB, Hero checks

Flop: (3 BB, 2 players) Q 8 Q
SB checks, Hero bets 1 BB, SB calls 1 BB

Turn: (5 BB, 2 players) J
SB checks, Hero bets 2.5 BB, fold

Hero wins 5 BB

Im going even larger on the turn to be able to shove the river when called

what are you balancing you're turn bets with? KT,K9,89, and T8 with a heart?

I would bet larger OTT with most of the range which I would bet on this wet board.

Flop is standard and better for your range, but you could also go larger OTF with your image.

i think you are over-thinking your image a bit.
i understand why you think this way, but in reality it's much more your own perception of yourself than the other players.
most other players are not that observant, and even if they are to some extent they won't have seen some of the showdowns (which you know your hole cards) to lead to these conclusions.
not to mention many players are often playing a lot more tables, even if they are capable of making such reads.

you even say "No read and minimal hands (<200) on the villian."
how can you expect villain to come up with those conclusions on you if you have close to 0 reads? nearly 200 hands isn't even "that small" of a sample..

so i would highly recommend to consider your image less when making your decisions, at least online.
obviously against some players you have played a LOT against this can change.

on this flop the reason to bet is because you basically have the nuts and want to get value! even if you were not an aggressive player, you would clearly want to bet vs almost all opponents.
same thing on the turn. i would probably size up slightly to be able to shove some rivers. you really want to get all-in with these kind of stacks and a lot of hands are going to call a bigger bet too. we are mostly representing a jack or better at this point, and so should bet our strong hands and bluffs to that size.
if we have a hand like a flush draw, or say a hand like 93o with a heart or diamond, we would want to at least sometimes bet to make better hands fold, such as random weak ace highs, weak king highs, a small pocket pair, etc. we are able to do so because we have a fair amount of value here.

Given SB image I am probably checking the flop. I would guess SB will bet a lot of turns and for more than our 1 bb bet on the flop (which I like the sizing BTW). I would call the SB turn bet and hopefully SB will bet big on the river.

As played on the flop, I would probably check the turn because SB is so likely to bluff at the river. Our 9 is basically the perfect card. If a 9 comes and SB hits the straight we win with a boat - and SB probably calls our raise. If the T comes we have the straight and SB may bluff. I get that there are two potential flush draws out there but we can call a lot of bluffs on the river if one "hits". And if SB checks the river we can pretend bluff and SB may have a pair and call.

As for sizing on the turn I would have made it 3.5 bb's or at least 3 bb's. Not a big deal really. But in general I prefer the larger sizing on all turns whether I have it or am bluffing (so the bet size doesn't give away hand strength).

Hero has an aggressive image, not SB. Checking back the flop is may be OK, as 1/3 pot does not build the pot much anyway. However, it might give away your hand a bit if you check the flop and bet strongly later on.

OTT, the board went from dry to dripping wet. You need to bet fairly large with all the possible draws out there. You want to bet largish with most hands you bet. This too wet a board to check to induce a river bet.

Lol at my reading skills.

Play on...