So, from the archives (aka bookmorks)
savannah.gnu.org/
@
boneidol
pointed in the direction of
git.coop/users/sign_in
(you have to join the coop)
if you are a member/supporter of FSFE
git.fsfe.org
would be an option, don't know if FSF offers something similar
for the Chaos peer-group, there is
chaos.expert/
And then the corporate backed services, gitlab.com and bitbucket.com