[Brom]

I like to bet the flop here in hopes that the button will raise and the people who call that raise will pretty much define their hands. This leaves you open to 3 bet them or wait till the turn as you see fit.
This is a raised pot so you should be trying to take it down. It would be no shame if you took it on the flop or got it heads up with the aggressive player whom you could probably take for multiple bets on the bigger streets.
The river is a raise in my opinion unless it is a super tight type player whom you can easily place on AK or KK. I don't know because you give no read on that opponent. However, if you think he could have a funky hand like A3 then IMO he's just as likely to have A8 or some garbage flush and will probably call a raise if he is that loose. Also note that a flop bet (assuming the agro behind you would raise) would help to clarify the SBs holding a little better.