It sounds like you might be looking for a specific music blog or a site that hosts MP3 collections, but that phrase is a bit broad!
For History Buffs: The Internet Archive offers everything from vintage radio to public domain live sets. vbr mp3 collection blogspot free link
lame --preset insane input.wav output.mp3
When a Blogspot blog labels a post "VBR MP3 Collection," it signals that the uploader knew what they were doing—they weren't just bulk-converting YouTube rips. It sounds like you might be looking for