Welcome to the world of tomato addicts... hmmm... sorry... tomato lovers!
I also started with only 3 varieties at the beginning of this century, and I now have 2700+ tomato varieties in my seed collection. No attempts to get it under control were successful.
I hope you already came across Tatiana's TOMATObase. If not, then perhaps you'll find it useful in your search for some great tomato varieties!
The ones on your list that I love are Aunt Ruby's German Green, Black from Tula, Black Krim, Cherokee Purple, Green Giant, Olena Ukrainian, Pink Berkeley Tie Dye, Jaune Flamme, KBX, and Mortgage Lifter.
Tatiana