This seems to be the list of certs https://gist.github.com/mendymm/ff7a9fd00339260b4d2dbdcb0f48...

data from https://www.ccadb.org/resources

A bit more info (and some discussion linked from these Bugzilla reports):

https://bugzilla.mozilla.org/show_bug.cgi?id=2083709

https://bugzilla.mozilla.org/show_bug.cgi?id=2018979

It is a shame that you cannot have a cert signed by multiple CAs.

(The format seems like it would allow it, but nothing supports it, and in practice CAs demand the ability to actually modify some fields, and then sign that.)