Researching Preamps

I currently have a Quicksilver Line stage preamp for the last 15 years.  I am getting back into vinyl and would like a built in phono stage and am looking to upgrade to the next stage as finances allow it but aren't unlimited .  It has to be tubed, please send me your suggestions and I will do the research .

My system is 2 mc75 mono amps refbished the quicksilver and Jolida glass dac III, magnepan mg IIIa's and a luxman cd Player (old).

Thanks

Mike