Render: Cloud Application Hosting for Developers
Like it says on the tin, pretty much. They seem to have a rather nice static site hosting tier that's free.
Spacebear Federation
Mastodon hosting company.
www.nearlyfreespeech.net
Very affordable website hosting. Might have a look at this the next time I want to spin up a low-content site or custom blog or something.
www.pythonanywhere.com
This could be useful for hosting of personal apps, or at least for experimenting with Python Web applications.