I am searching for a catalog, list, database, etc. That should show astronomical observations of known black hole candidates. I am primarily interested in knowing the mass of these candidates.
I have found this paper: https://ui.adsabs.harvard.edu/abs/2016A%26A...587A..61C/abstract
but I am curious if more recent work is available or something more complete has been done. Ideally I'd like to get data on the ALL known black hole candidates in the universe, so both black holes in our own galaxy and black hole candidates that might be at the center of other galaxies.