Both villains are unknown regs pretty much. MP plays 29/21 after 30 hands, BB plays 21/15 after 900 hands. BB folds 40% to cbets so far, and seems pretty tight overall.

I know a lot of people fold here, but I discovered in my database that I lose with 22-55/66 UTG, so decided to leave that out of my UTG range and open some suited aces instead, esp the small suited aces.

This is where the hand gets interesting I think. I really had no clue what to do. Tbh I think I am highly unlikely to get called by worse, but I also think that checking and having MP to bet or the situation where he checks and BB bets any turn is pretty hard to play since it is hard to say if he can bluff there since I and MP are unlikely to have top pair or better. I estimate that MP folds 68% of the time vs a cbet (gave him 9% flatting range in flopzilla and let him only call top pair and flush draws), and guess BB folds 60% (same callingrange and added come suited aces and suited connectors). Since 0.6x0.68=0.40, my cbet is profitable since it has to work only around 40% and I also have equity. Therefore, I think my cbet is good.

Assuming callingrange I gave BB on flop, I have 81% equity vs his range. If I assume he folds 50% of flush draws, I have 79% equity vs his callingrange on turn. Therefore, I think the turn is a clear valuebet.

On the river he folds all flush draws and folds A3s/A5s, I still have 74% equity, and therefore I think I have to bet the river again.

Sorry for the spoiler, my bad. It is my first hand here, so have to get used to it. Curious about your feedback, esp about flop play :) Looking forward working with you guys.