You could check out reviews online to help make your choice. Search for Reviews of Ryobe RTS21G. I found what turns out to be a pretty good review of the Ryobe saw at https://electrosawhq.com/ryobi-table-saw-reviews/
At $100, looks to be OK. It is far better built than the one I tossed. If money is really an issue, I'd go for it. And, according to the review, it will take a dado stack. Looking at again, the previous owner at least put a dust catcher on it, which suggests some care was given it by the previous owner.
The more I do, the less I accomplish.