Illinois, where to get lessons?

So my little brother came to my race this weekend and got the itch to ride. He has never been on a dirt bike his entire life. My parents and I thought it was best to have him take a few lessons first before they commit to buying him a bike and the whole racing thing. Normally I would teach him but since I'm stationed in NJ and they are in the suburbs of Chicago it makes that a bit difficult. I reached out to Joliet MX which didn't really have any where or any one that they knew that gave lessons, so figured I'd reach out here. If you guys know of any places/people that do riding instructions, etc. in the chicagoland/southwest suburbs I would appreciate it. Thanks in advance! Zach