Looking for a great el34 based amp

Audio Space AS-3i. Bias controls on the top panel. Small footprint FWIW, cute-looking, responds nicely to tweaks. Has front-panel feedback control and triode/ultralinear switch.

The Rogue Cronus is another interesting option, a little more power, a little more expensive.

Audiomat Arpège and Prelude Reference, both more expensive than the two I recommended above. Not Class A AFAIK but don't let that stop you giving all these guys a listen, hee hee. The Audiomats won't let you bias them easily. Instead, as I understand it, the distributor notes your bias setting and sells you tubes picked for it when you need them.