If you're looking to go used, of the long standing production Eden amps I've played, my all time favorite is the WT400. IMO, it was the warmest of the WT heads. The WT550 is also a great sounding amp. It has a tighter low end and crisper response than the WT400, but still with a bit of warmth. It's rock solid at 2 ohms. Both have the famous Eden para EQ, and are pretty easy to schlep with the 400 at 13 pounds and the 550 at about 20 pounds.
The WT800 is also a great choice. Lots of power and is on the warmer side like the WT400. Lots of other features like ability to run stereo or bridged mono.
I haven't played any of the WTX line, but I'm sure those also sound great.
If you are a fan of a preamp/power amp setup, the Navigator is a great pre. You could couple the Nav with a Class D poweramp, like a Peavey IPR or Crest Prolite, and have a great sounding combination that is still easy to schlep.
Lots of options!
"Use your ears and what is between them and you will be fine." - CL400Peavey