TBH most "Free speech" platforms will allow anything except fraud, child porn, and calls to violence that violate criminal law. Baring all of that. There are still places online to host whatever you want.
It's mixed and depends a lot on how far they go into the unmoderated depths. Gab and Parler for example are US company while there's 8kun/chan that are overseas and go/went way further into illegal content.
