For some reason or another, these movies usually aren't on streaming. Usually the reason is Disney accumulating other studios and putting the movies into the vault, making them unavailable for streaming or being shown in theaters or at festivals. So go to your library! Or be a rebel and find other less savory ways to watch movies. But you didn't hear that from me.
Below are links. One is to a spreadsheet where I got my info (the missing movies tab). The other is an article about Disney putting movies in it's vault. Also some movies are known by multiple names. Also, also, watch at your own discretion! Even some of the descriptions were hard to get through for a few of these. And some of these movies are basically, well, adult films.
https://docs.google.com/spreadsheets/u/0/d/1cDol7En5tQrfaEwrvcrmWhAreJhTcnMQHdkBr-sQvFg/htmlview#
https://www.vulture.com/2019/10/disney-is-quietly-placing-classic-fox-movies-into-its-vault.html