In 2021 I wrote a book on MIPS assembly programming. It’s targeted at college students in the standard MIPS/architecture type course (often using the Patterson and Hennessy textbook). Despite that, anyone can use it, though basic knowledge of C syntax helps.
The book is free, but any level of support gets you the solutions to the chapter exercises.
All higher levels of support get their name with an optional link on the Supporters page at the end of the book, while the Corporate Sponsors will also have an image/logo on the dedication page.