"open to tubes as long as the unit is one box solution."
Good:
https://www.usaudiomart.com/details/650160664-manley-chinook-phono-pre-amp/
"Better"
https://www.usaudiomart.com/details/650160529-primaluna-evo-100-tube-phono-preamp/
Both have been demoed in my setup.
Currently using PL which at the price, is easily comparable in sound/build of $4K+ units. Since SQ is personal, build quality unquestionably will be on par-likely better than any $4K+ unit.
Both have a standard footprint, but worthy of consideration based on listed price.