It'd probably be best not to do a ton of websites. You can find that on Google.

Just need websites that have file-writing support, really, and preferably FTP.

I think it'd be good to have some sort of list for each host like:
File Write Support: Yes (though they should all have this before making the list, so probably don't need to include that)
FTP: Yes
MySQL: Yes

They should all also support PHP.

Anyway, a relatively short list. We don't want them to feel overwhelmed with choices. Just a compact list of the best ones such that anyone who needs a host will be able to find one to suit their needs with the shortest list possible to achieve that.