pairing a Dynaco st70 with a preamp

what modern preamp would you pair a Dynaco st70?
A good friend of mine had his paired with an Audible Illusions pre, many years ago. That combination sounded wonderful through vintage Quad speakers.

Any good tube peramp will work fine.

If it really is a vintage unit, make sure your filter capacitors in the power supply have been serviced out!
I'll put my two cents in for the Audible Illusions or a modwright yet as Ralph suggests any good pre would work fine.

Happy Listening!
I have an ST-70 and use a Conrad Johnson PV5 which sounds great.