If you are willing to stay with MM or moving iron you could not too much better than an Audio Research LP 1 which you will have to pick up used unless there is a NIB to be found somewhere. I use one in one of my systems and it is exceptional for the cost. Look it up.
A comparable phono preamp
I recently bought a rouge audio rp7 preamp my amp is a bryston 4b my turntable is a linn basic with an akito tonearm with a linn adict mm cartridge mounted to it.I would like to at a later time up date it with a MC cartridge. My speakers are a pair of dynaudio special fortys with a rel s510 sub woofer. Now my preamp has no phono section nor dose the turntable. The phono preamp I have sounds cold harsh and to bright. It is a NAD PP4 and I am using it because it is what I use to record vynal to digital with a USB out. I should of bought a phono preamp when i bought the preamp .Now I am looking for a phono preamp that will give me that warm natural sound I am looking for. Can anyone suggest to me a phono preamp that will make my system sound like what I have spent to build it. TY mal11963