I happened to come across this site while searching for solubility of NaClO3 in methanol which I couldn't find on any other site online (could say
more about my search technique though). It is a Russian site, but it has a lot in English, or it translates automatically. It is also possible to
view the site through Google Translate.
What I found is that it has the solubility amounts for a lot of compounds in a wide list of solvents, much more in depth than Wiki.