A used Primaluna would be a good value. Rogue makes good stuff. I haven't owned any of their integrateds, but had their M180 monoblock amps for a long time. They were rock solid. If it was me, I'd probably try to find something from Line Magnetic if it fits the budget. I really like the looks and sound of their gear.
You might be able to find some older tube integrateds from Audio Research in your budget range. I have a VSi55 (50 WPC). I think I paid just a little more than that. "Only" 50 watts, but I've driven Thiels, Harbeths, Stirlings, and other "hard to drive" speakers with it in an office system, not at concert volumes.