Audio Research PH8 (used) or higher.
I finally found Audio Research phono stages in about 1990. Since then I have been completely dedicated to them. This was a PH2. I then upgraded to a 2SE, 3, 3SE, then.a PH8, and finally a Reference 3… which I will upgrade to a Reference 3SE soon.
Each upgrade, I did lots of research to verify this was the best possible step. It has always been so. I can’t more highly recommend a phono stage. The PH8, was the first one that did not hold back my turntable. While later models are better… to me, the PH8 this sets the bar for outstanding phonostages. Outstanding sound quality, natural, musical, detailed, and Incredibly cost effective for the money.