css-tricks has good stuff:

https://css-tricks.com/

And I like this Principles of Object-Oriented Javascript book by Nicholas Zakas even though it's a little dated (example: its claim that there are no classes in JavaScript)

https://nostarch.com/oojs

And I love everything by Kevin Powell:

https://www.youtube.com/@KevinPowell

edit* I want to add the The Odin Project has a ton of good material:

https://www.theodinproject.com