SF cycling groups

I’m looking for beginner friendly group rides. I can do hawk hill, twin peaks, rides in Marin, but I’m slow. I’ve read some previous Reddit posts with the same question and it seems like people recommend the group rides with Swell, Velo 7x7, Ornot, Rapha, fatcake. Can anyone recommend the rides that are most beginner friendly? I know some rides say no drop but some rides tend to attract more experienced cyclists. Velo 7x7 has a Strava group but it’s invite-only and doesn’t give info about their rides. Are the rides invite only also? Thanks in advance!