Entry Level Tube Preamp or Higher Quality Used Model?

Hi All-

Overall I have great system that I’m happy with. But I recently heard a tube preamp and am smitten. There appear to be some well reviewed affordable models from Schiit Audio and Rogue, etc. that can be had for relatively short money. However for roughly the same price I can get a used piece from a traditionally higher quality brand like AudioResearch, Conrad Johnson, etc.

I’d like to stay around $1500 or less. Balanced operation would be good too. No phone pre section needed. The Schiit Freya+ Seems to be a good economical option. Are any of the new Chi-Fi brands worth a look? Does anyone have a recommendation?

thanks

glen