I made those boot animations for my personal use but I thought to share them. They will work on any resolution, but they might be displayed too big or too small depending on your resolution. If you don't like the original size, you can resize them to your liking using the Boot Animation Factory Tool, that I also attached because the links in the original thread are dead.
Total: 72 (there are a lot more, you just need to browse through the pages to find them)
19 on post #1
20 on post #2
20 on post #3
13 on post #4
1 - Download bootanimation.zip
2 - Rename it to bootanimation.zip
3 - Using a file explorer like Root Explorer move the downloaded bootanimation.zip to your system/media folder
4 - Set the bootanimation.zip permissions to 644 (rw-r--r--)
5 - Reboot your phone
Note 1: They work on LOS/AOSP roms.
Note 2: They don't work on Samsung stock or stock based roms.
Note 3: You can request any bootanimation as flashable.
Special thanks to: @PartimusPrime @despotovski01 @jackeagle