I'd second strawberry music player (many platforms)
https://www.strawberrymusicplayer.org/
Tagscanner and mp3tag to properly tag and edit/move your music to your locations of choice. They both connect to Discogs and Musicbrainz (Windows)
https://www.xdlab.ru/en/
https://www.mp3tag.de/en/
Bandcamp to purchase new downloadable or physical music formats.
https://www.bandcamp.com
Discogs to buy and sell second hand CDs and Vinyl
https://www.discogs.com/
Fre:ac music transcoder to convert the FLAC downloaded from Bandcamp (many platforms)
https://www.freac.org/
I also use foobar2000 occasionally as it has a huge range of plugins so it can probably do what you currently can't do.
To rip CDs on windows us Exact Audio Copy.
https://www.exactaudiocopy.de/
To find music otherwise, torrent sites. To learn about new music listen to a local or nearby community radio station and find the program(s) that play the music you like.
Here in Melbourne/Naarm we have
RRR https://www.rrr.org.au/
And PBS https://www.pbsfm.org.au/