Acappella/Vocal Jazz/Gospel recommendations?

The ARC Choir produced by Mapleshade. An Acappella gospel CD.

This is more folk-blugrass but it's GREAT. Sugar Hill's "Sacred Voices, an acappella gospel collection" I've really enjoyed this over the years and it's ALL accapella.

If you can find it, get the Fairfield Four "Standing in the Safety Zone" CD. Best acapella vocals I've heard on digital.

In the bluegrass/traditional genre, try Doyle Lawson and Quicksilver. I know that they have at least one CD that is all accapella. Also, the Nashville Bluegrass Band and The Isaacs and good choices.

Ditto for the Fairfield Four. Also, anything by Sweet Honey in the Rock. Especially their Carnegie Hall album.