Buying Soundtracks

So a lot of the music that I like to listen to isn’t on streaming services. I like a lot of soundtracks especially to video games and anime and such, and all the streaming services usually only have knockoffs or the intro. But a lot of these soundtracks are pretty pricey to buy the physical copy, and iTunes doesn’t usually have them. So I was wondering what you guys do, besides “that which will not be named”

This, usually.

Steam and GoG sometimes have the game soundtracks aswell.

Qobuz, HDTracks and Bandcamp are usually the go-tos. Though I can’t speak to their collection of anime soundtracks, HDTracks does have a category for them.
See also:
Lossless Albums
ProStudio Masters

Ah yes anime soundtracks… overpriced otaku bait sometimes. Like anime Blu-rays.

Afaik a lot of them are mainly available as CDs, and CDs sell because of the physical collectability. Full OST discs are alright, but singles are definitely expensive. Some popular streaming platforms like itunes have stuff from popular series, but it may be a bit hard to find since you usually have to search by the actual artist/album/song title.

You can find digital through… less than legal sources, but those are usually CD rips, not actual digitals direct from a seller.

So yeah, importing CDs or the high seas is usually the only way to get higher quality than 320MP3/256AAC