Before searching, distinguish between the type of sheet music you need:
Unlocking the Filipino Soul: The Quest for OPM SATB PDFs (And How to Build Your Choral Library Right) opm satb pdf
Pick a song or piece you want to arrange for SATB choir. It could be a popular song, a hymn, or any piece you think would sound good with four-part harmony. Before searching, distinguish between the type of sheet