With the exception of the EOS 1V, I think that just about ALL EOS bodies can be found for under $300. No joke. So you have LOTS to choose from. So it depends on other factors you might desire. Just to provide an example for you, I sold a EOS Elan II that my mom owned, which she never used -- I mean it never had a single roll of film put through it -- sold it several years ago for $10. I made the mistake of listing it at auction on eBay with an opening bid of $10. And that's what it sold for. But you know, if I would have listed it as Buy It Now, I'd probably not gotten more than $25 for it. Oh well. I have an Elan IIe and it's actually a very nice camera.
But I guess if I were to get an EOS that wasn't a 1n or a 1v, I'd get an EOS 3. It's a very capable, advanced camera, suitable for pros and advanced amateurs. And for your purposes, it fits easily within your budget, selling for $100-130 in clean shape.