Good question! There are definitely resources.
I went the self-taught route with some free classes sprinkled in so I cannot recommend a bootcamp for accessibility or UX.
I started out by gaining more experience with UX in general before familiarizing myself with accessibility as the accessibility documents would reference principles of UX which ended up being somewhat confusing without context.
Resources for UX in general
UX Google Course - you can audit this courses from this program. I would use this if you are not familiar with the UX process or the field in general.
The Sprint Book: this is a great book to familiarize yourself with product design cycle, how agile environment work in practice and more.
Interaction Design: Beyond Human-Computer Interaction - I have the 4th edition but I don’t know how much difference there is between editions. This is a textbook style for UX design that gave very good context for the history of UX, current practices, examples etc.
Accessibility specific
Web Content Accessibility Guide (WCAG): this is the standard that everyone refers for digital accessibility standards. It is on edition 3.0 and it is DENSE. It is really helpful but it is easier to understand if you are trying to solve an issue like typography selection and go to that section of the guide to figure out what the standards are rather than reading the guide front to back. I kind of think of it as the OTPF but way more specific on what standards are expected.
A11y Project: this website breaks down standards from WCAG in a Way more friendly way.
Carbon design system: Accessibility - also has great resources for picking accessible colors etc.
Figma has plugs in for color blind and color contrast checkers.
That is what I can think of on the top of my head. If I think of more, I’ll come back and edit the comment to add it.
I’m also on mobile so it is tedious to add links. I will add all links when I have time later!