Hoo boy I wanted the full 2000’s download individual songs and organize them on your device experience so I spent too much time finding apps for each step.

Seal - lets you download videoes if you have a video link, like a youtube video

zarchiver - gives you better file management and control than most standard smart phone OS obfuscation bullshit. use it to rename and organize your downloads

Aimp - allows you to make playlists and play your music

Is it the fastest way? nope is it even good? probably not but there are no commercials, its all on your phone and you only have to organize it once