[nequo]

The best advice might be to do a project with Haskell that solves a problem that you personally have. In the process, you will learn what works well and what works less well in Haskell.

Along the lines of perusing the standard library like you mentioned, depending on what problem domains you are more familiar with, you could look at libraries for those domains as examples.

As far as books go, people say good things about Haskell Programming from First Principles:

https://haskellbook.com/