I switched to DroidFS from EDS lite (a kinda dead open source alternative) few months ago. It’s soooo nice.
I think it’s the first app that can open a big video without allocating that space in internal storage. Previously, if I had a 1gb encrypted video, apps would decrypt it in internal storage and play it, temporarily taking up an extra gigabyte (this was an issue if I didn’t have enough space).
I’m using gocryptfs because I actually kinda like seeing the file structured, in case I need to delete a folder or file without decrypting the storage, and I can decrypt those files on pc too (I think both windows and linux have an app for this).
I haven’t tried, but if you’re on linux you could try puddletag. OneTagger is very powerfull too (and cross platform). I also have some extra tools that may help you in this guide I made here (it’s a guide on how to semi-automatically download and tag music, for a windows pc).