[egiap's 5.0]

Is there any one shop or race teams you might know of who sells used tires. Or what is the best tire for the price. I see a lot of people in are club run khumos. I'm tired of going sideways in hair pin turns. These tires will be used in solo 2 raceing. Any thing with tread rating of 100 or lower should be good, right. Thanks in advance for any help.