Current meta for direct download sites?

So Amazon finally closed up the kindle 4 pc loophole (bah) and that means I need to learn how to find ebooks for the authors who insist on releasing exclusively on kindle.

Looks like ebook-hunter and the like are the way to go for that (and I set up a reminder to try to get an invite to myanonamouse and we'll see how that goes). But... that site uses tiny-files which is straight up cancer. Not the end of the world to click the same link and close the same blocked pop ups five times in a row for a one off but... yeah.

Back in the day we used apps like jdownloader to make this less painful but from checking out the flatpak... that might be actively malware at this point AND it wants me to install definitely malware browser plugins and the like.

So is there a better alternative? Preferably something I can run in a container on a random server.

Thanks.