Best value in pre-owned preamps right now?

I think it depends on the budget. For a truly budget system the Schitt SYS combined with the right used power amp might prove better than an integrated.

A used Jolida or Quicksilver tube pre also come to mind as a good deal in a somewhat more expensive system.

Classe pre-amps used are typically very good value. Bel Canto also. It always comes down to these two for me when looking. I would also consider most Krells.

+1 for the Modwright SWL 9.0 suggestion. I've tried (multiple times) to remove the analog preamp from my system, but always come back to them. It's a personal preference, having a standalone preamp in the signal chain happens to be mine - YMMV.

I acquired a Modwright a few months ago and find it to be wonderful - as good or better than all other preamps I've owned (up to $5k). I rolled in a pair or Amperex Pinched 7119's and absolutely love it.

+1 for the Modwright SWL 9.0 suggestion. I've tried (multiple times) to remove the analog preamp from my system, but always come back to them. It's a personal preference, having a standalone preamp in the signal chain happens to be mine - YMMV.

I acquired a Modwright a few months ago and find it to be wonderful - as good or better than all other preamps I've owned (up to $5k). I rolled in a pair or Amperex Pinched 7119's and absolutely love it.

HK fan,

You could select one of these great suggestions, spend a fair amount of your hard earned money, hook it up to your system and hate it.

Without knowing what your audio preferences are and your system, making a suggestion is of little benefit.