Is There Any Good Websites To Look Up Used Cars?

Well everyone I'm 21 in a wheelchair looking to get a handicap vehicle but the problem is I don't have allot of money to be spending but if I can get it cheap my family's good at repairs but I just don't know where to go. If anyone can help please any info is good I would love to hear more from people that live close to Buffalo N.Y. if there's any place I could go to around hear. Thanks Everyone!!