After my hobby project grew quite big I decided to publish my app that i have been working on for some time that is all about managing your manga/doujin, by which I mean clean their names to match some standards that you decide on. There is nothing more reliable than your own stash (do keep a backup).
It allows you to quickly change folder/zip/cbz names with tags you specify without breaking "work" flow to keep your gallery ogranized afterwards.
It also have a built-in image viewer and gallery overview with thumbnail images and some other usefull tools.
I have decided to make it free for some time for extended testing sice it's hard to cover all cases by myself, especially if I tried to make it work in a way i wanted it to. Also, that way you can check it out without risking much.
You can get everything you need here:
BearPaw
And a quick overview of the app:
I would love to hear any feedback either here or discord (check my site for details)!