Sacred/traditional Hebrew songs for a choir?

Hey all, I am looking to arrange some music for a Hebrew choir I’m involved in. Only thing is, I didn’t grow up religious, and I feel like I don’t have much knowledge of what’s out there to draw from.

I’m mainly in search of traditional music that could be incorporated into Shabbat services, but maybe also some esoteric non-sacred tunes that would fit into a concert programme, a Shabbat dinner, an evening of prayer, etc. Modern music is cool too, but ideally not pop music – something with a bit more gravity to it.

We already sing all the “standard” Saturday service songs, alongside a cantor. If you have any ideas for resources/artists/songs I could look into, I’d really appreciate it!