breh take your ass into a store and try them shyts on. You might see a good deal online but how it fit matters. When I cop a suit (or any clothes) I wanna feel the fabric, the material inside the jacket, get a sense of how the pants fit, how the buttons are sewn, quality of the seams, etc. If you can afford to spend $250-400 on some thing decent then do it and immediately take that shyt to the tailor so they can bless you with that perfect fit so that your suit looks like some official expensive shyt. Fit is key. Avoid the bullshyt Steve Harvey/Tracy McGrady zuits that Malcolm Little and Red were wearing back in the day. Take a look at J. Crew (cant go wrong with their Ludlow suits), SuitSupply, TopMan and Banana for some joints that will take your shyt to the next level.
Get some quality ties, pocket square and a fukking tie bar to set that bytch off
and don't forget the shoes