If you are looking for real, high-bitrate MP3s (true 320 kbps) instead of low-quality YouTube transcodes, you should check out Jukebox Torrent (https://jukeboxtorrent.vip/).
I personally curate the index to specifically target clean audio archiving, offline setups, and classic iPods. Every single release is strictly sourced from original CD first pressings or high-end Vinyl Rips to preserve the original dynamic range and completely avoid compressed modern loudness war remasters.
It is completely free and ad-free, you just need a quick account registration to view the secure magnet links. It currently features around 160 daily updated studio albums and greatest hits across the catalog.