Easy, used Audio Research Ref 5SE. I owned one for nearly ten years… now I have an ARC REF 6se. I also own a Prima Luna integrated. ARC’s preamps are world class. They have been at the forefront of the best sound possible for decades. Although they took a little stumble on the REF 1 and 2… after that got back on track with the Reference series. You can see my system under my user ID.
The REF5SE is one you could be proud to is for decades. The more ARC you add the better and better the sound gets. Assuming you like detailed, natural, and highly musical sound. If you like highly detailed at any cost and artificially over accentuated slam, then no, this is not the right direction… but neither is PrimaLuna.