What separate tube phono stage do you use ?

Ralph, thank you, I get the picture. Having your preamp with phono would be an excellent choice indeed. I hope it is versatile enough to work well with various power amps, tube hybrid or transistors.
Or, how about this ? MP3 preamp into Gryphon Diablo integrated. Diablo has passive preamp. Why would I want it ? Well, if I decided to have, temporarily or permanently, solid state power amp my choice would be Gryphon, but I wouldn't be able to afford Gryphon power amp even used. So basically I would want just the power amp section of the Diablo, or older Callisto and Atilla. I took a look, Gryphon's input impedance is 10 kohm RCA and 40 kohm XLR.

MP-3's phono seems to be MC only with 55 db gain. That's not what I would be using. The system would be old ways - open reel deck and MM, either modern or vintage.

Been using the new ModWright separate phono preamp since it came out.  Was lucky enough to get in on the first release beta edition , very very nice. PH 9.0

I use MM and MC with my MP-3. The MM is 3 mV and the MC 0.4 mV. Enough gain either way. I also don't load down my MC cartridge, never have loaded them really. It was something I picked up from Keith Herron who didn't have a MC load selection on the early version of his phono stage.

I would think that 55db gain is way too high for most or all MM and MI cartridges. Usually it’s around 40db ? But maybe Ralph’s preamps can be customized to change the gain.
I am a little surprised than no-one mentioned Lamm and VAC so far, though I am not sure that VAC makes separate phono, perhaps that’s why. What about Conrad Johnson, CAT, some other European companies ? Japanese like Wavac, Komuro ?