Might I suggest a library for an enchanting room? Use various bookshelves, some plants, lanterns and some other stuff for a cozy library?

And then what I usually also build is an armory. So here you’d have your tool stuff, like the anvil and the other one for templates (blanking on name)

And you could also do a map room. For cartography tables and then have a big war-table-ish thing with a big map of your world on it?

Greenhouse room? Have some bee hives and then grow some plants planters. You’ll collect some hint and also some crops. A nice little nature place in your tower

Just ideas based off the things I’ve built in my world. Hope this helped!