Mylar3: Specifically designed for comic book management. Source: 12 months ago

Mylar - Equivalent to Readarr, but for comic-books. Also, less intuitive to use. Source: over 1 year ago

You might want to look into Mylar3 and/or Threetwo. I've only tried Mylar3 myself, and I believe it did download a comic or two, but based on some other comments in this thread, it sounds like it's hit or miss for reliability. Source: over 1 year ago

I've got a pretty small archive, so currently manually managing it. But I had bookmarked Threetwo to look into later. It might just automate acquiring comics though, like Mylar3. (Although Mylar might also be able to manage comics, but I haven't dealt into it too much). Source: over 1 year ago

Mylar3 and Kavita - To download and read comics. Running on a Win 10 VM because I got it all setup before I started getting into Docker. Mylar downloads the comics and Kavita is a nice web UI for reading them. https://github.com/mylar3/mylar3 https://github.com/Kareadita/Kavita. Source: over 1 year ago

An Android tablet and the CoolReader app. For me, it's simply the best eReader experience available. It's incredibly customisable. The only downside is it doesn't support PDF or AZW3, both of which can be reformatted to your preferred file type with Calibre anyway. Source: over 1 year ago

Cool reader is also another option https://sourceforge.net/projects/crengine/. Source: about 3 years ago