TMoIS300

Hey guys, haven't been on here in a while but had a question, I just bought the XXR 527's 17x8.25 [25 mm] and was trying to figure out what the best size low profile tire i could get by with... I currently have the 235 stock tires that were on the stock wheels. (not 100% of all the numbers) but they look like donuts and not really happy with the turn out and just wanted to know of a good size for these wheels. Thanks for your input!