+3 on the Schiit Mani. Good little phono pre that is low cost.
Same for the Pro-Ject Phono Box. I ran one on a second system for a few years and it was solid.
And to add one more to the list, the Parasound Zphono which to me, is a step up from the Schiit and Pro-ject. There a few different versions and you can pick them up cheap on eBay.