If your ensemble is continuing to meet online during the COVID-19 pandemic, you may want to consider dedicating some or all of your programming to repertoire that can be sung in realtime online. This music includes both works composed specifically for singing online, with allowances for latency, lack of complete rhythmic syncing, and some audio dropouts, and music that can be adapted for online singing, such as pieces written with block chords that include long pauses between rests or short passages.
The C4 Ensemble has embraced remote choir singing, and have broadcast several live concerts of their work. Their website is here.
Karen Siegel of the C4 Ensemble has written a number of works for remote choir. She is maintaining a database of works written for this medium that you can see here.
Sacred & Profane Chamber Chorus is including recordings of remote choir pieces in broadcasts that also include other content, such as virtual choir videos, solo or small ensemble performances, interviews, and more. So while we are not necessarily presenting live online concerts that feature remote choir pieces, we are singing together in realtime in our rehearsals and recordings of remote choir pieces. While we don't get that wonderful buzz that we have when singing together in the same space, and though we can't sing rhythmically complex or synced music that defines our typical repertoire, the experience of singing together is still extremely rewarding for many of us, and our sense of community has remained strong during the pandemic.