Also for the poster I have owned and listened to more preamps over the past years than you could imagine. All in my system and room. Many costing up to $12,000 new as I have been fortunate to sell gear for several high end audio friends. Without exaggeration I have listened to and compared at least 20 highly touted and highly reviewed preamps over the past 10 years....perhaps more as I lost count.
The ones mentioned are all very good indeed.... like Coincident & CAT. Others like Tom Evans Vibe, Tom Evans Soulmate, various Joule units, Atmasphere, Audio Horizons, CJ, etc...are also very good. But, in terms of which ones can be had at $3,000 and under, not sure you can get some of these like the Dude or Coincident.
The two best I have heard (in my system) under $3,000 would be these and in this order....
Audio Valve Eklipse ......absolutely a sleeper used.
Tom Evans Vibe alone and even better with Pulse power supply. But the power supply may be out of your budget.