Are there any out there that are still breeding that aren't First Down Dash/Corona Cartel/Mr. Jess Perry? I know they are successful for a reason :) I can think of Tres Seis and Separatist off the top of my head. Azoom, but they only have frozen because he recently died.

We have a yearling by Azoom that was via frozen semen on a maiden mare. She took the first try. The resulting filly was one of the nicest babies I've ever seen and she just gets nicer and nicer as she grows. 

My parents have a syndicate share in Azoom so we got a great deal on breeding to him. Plus their mates have been the most successful foals Azoom has had so it was a no brainer for us to use him. 
Fly The Red Eye is one. Sort of. 
Cold Cash 123

DMNV Mountable

I had a breeding to DMNV Mountable this year, moved it to next year since my pay went bye-bye with Covid-19. Not only is he a winner of almost half a million on the track and the winningest son of Panther Mountain, but the owner was so insanely pleasant and easy to work with. When I explained my current situation, he refunded me the NON-REFUNDABLE fees I'd already paid. So sweet and compassionate and optimistic.