Here are several sites, all by the same dude, one
Tillmann Courth. His subject is Fifties Horror - and he must have put weeks [if not months] into this, so obviously he's obsessed - but in a good way, I think. An excellent resource.
Each publisher site has artist bios - and that's their strength - and he has extensive pages of detail on the titles, the stories and the covers. So a terrific Golden Age resource.
I don't by any means agree with him on his opinions or his assessment of some of the artists and in some case I vehemently disagree.
https://twistmyratio.de/artists-of-dc/Artists of DC - DC HORRORWarning- he is no fan of DC
Artists of Quality.QUALITY HORRORhttps://twistmyratio.de/artists-of-quality/Artists of Avon. AVON HORRORhttps://twistmyratio.de/ACE. the Forgotten Companyhttp://aces-of-ace.de/ http://highest-standard.de/Artists of Fiction House Artists of Fawcett/Artists of Charlton
http://charm-of-charlton.de/Fifties Horrorhttps://fifties-horror.de/ This one is in Deutsch so you need to translate.
But it does contain his work on EC horror and much before besides
No Timely/Atlas list yet tho.
He also has this one which is a collection of well-scanned Golden Age crime stories.
A great read if you are into that.
Wave of Crime https://crimewave.de/