Excellent affordable preamps keep springing UP

As I search the forum, I keep hearing about excellent affordable preamps. Let's hear from goners about their favorites!!
Some that popped up in my readings: audio horizons and dodd, placette !!
Are these really great and are there any others?
I love my Tube Technology Seer, may be hard to find because they are no longer in business but can be found second hand.
One that shows up; but not often would be Klyne Audio preamps series 6 or 7.
If a transformer volume control (TVC) passive preamp meets with your system needs, the Promitheus Audio units are an outstanding value. Most of the Promitheus TVCs sell new for between $300 and $700, and the sound quality is truly excellent. TVC passives are easier to successfully work into a system in comparison with resistor-based passives like the Placette because TVCs are not as finicky from the standpoint of impedance matching and the ability to drive long interconnects.
TAD150 Signature

No longer made, but they are still supported & available.