There isn't a complete playlist of soundtracks for Shadow of the Tomb Raider on the official Crystal Dynamics Soundcloud page, but you can listen to 4 of them.
There is also a playlist of 8 videos on the official Youtube channel that goes into detail about the creation of the music by Brian D'Oliveira, as well as features a few tracks.
If you fancy owning the music on something physical, Laced Records released a double vinyl set with 28 tracks. It can still be bought on their website.
"We've teamed up with Square-Enix and Eidos-Montréal to bring multi-instrumentalist Brian D’Oliveira’s raw, naturalistic score for Shadow of the Tomb Raider to wax for the first time.
Over 28 tracks, D’Oliveira (Tearaway, Papo & Yo, Resident Evil 7: Biohazard) weaves an exotic, emotional, and darkly spiritual musical tapestry using only natural acoustic instruments and live performances. The score won Best Original Soundtrack and Best Interactive Score at the 2019 Game Audio Network Guild Awards.
Specially remastered for vinyl, the Shadow of the Tomb Raider OST will be pressed to 180g heavyweight orange and blue vinyl, and be housed in a 350gsm card gatefold sleeve."