As a very general observation: if your tube system is in danger of lacking good dynamics, something is wrong. At moderate to low volume levels, I expect tube gear to sound considerably more dynamic and alive than solid state. As a more specific observation, your particular tube electronics is on the leaner side, not the warmer side, of tube electronics; for my taste, I would want a quite warm sounding phono stage in that setup.
I have heard, and liked phono stages from Lector (Italian, tube) and Audio Note (requires SUT for MC, very expensive), Allnic and Zanden. I own the Italian Viva Fono myself.