There are quite a few possibilities, check the different years dinghy guides as a starting point, and then verify any specific one you are looking at is towable. This can help you start choosing,
Dinghy guideAnd there are multiple years listed because they do change as models do.
I bought DW a little chevy cobalt a couple of years ago that she has had no problems with, it was a 06 model, flat towable, automatic front wheel drive with only 70k miles and it was less than $4k. former state owned car so should have seen regular maintenance. So yes there are some inexpensive possibilities out there if you are budget shopping.