Saks Off 5th has some good ones right now with Zegna fabric marked down to $299. Not sure what your budget is, but make sure you account for another $150 or so to get it tailored. You can spend $5k on a suit and you’ll still look like shit if it’s not tailored properly. The “major” department store suits from the labels you know like Perry Ellis, Tommy Hilfiger, Michael Kors, etc typically provide very little in terms of extra material to keep costs down so tailoring then can be a challenge.