Typescript itself isn't really "full stack", what frameworks are you using with Typescript? they are your stack. Rails is a framework, it's not a language.

I used Rails mainly in the past because I did plain web apps with very little Javascript on the client. Active Record was really handy to quickly develop the data access part of it. But more importantly, they were several books (like the Rails tutorial and others) with practical projects.

IMHO that's what matters the most with a framework, concrete examples, real world project tutorials and a very good documentation.