Tube amp for JMR Trentes?

Have a pair of JM Reynaud Trentes that I really like. I'm currently using an SS integrated and one thing that's become clear is that I do indeed prefer the sound of tubes. I dropped in an old AN P2SE (as an amp with the SS integrated) that I have around and the music jumped to life. This is a second smaller system; my main system is tubes.

Based on comments I've read the Trentes appear to be OK with low watt tubes amps partly because they are a stable load, but I'm concerned about needing more headroom at times than, say, 3 watts (one guy had good luck with a pair of Wright 2A3s with the Trentes). Volume is not much of an issue as the room is small and I rarely listen loud (but someday who knows). I was considering the Wrights or a Fi X, but just think more power would be more reasonable.

Any particular recommendations for tubes amps with the Trentes? An integrated would be nice but also OK with amp ideas as I can use the preamp out of the integrated for now and work on a preamp if necessary. My music preference is mostly acoustic (bluegrass, small ensemble classical, jazz, "new age") but also space music (electronic but mellow) and the occaisional Wilco, amplified world or jazz, Keb Mo, Los Lobos. Thanks.