Great suggestions here: Rogue, Peachtree, Hegel.
Shopping at The Music Room will net you a great, checked out piece. Here's a search result with a bunch of good options selected.
Here's the CERTIFIED PRE-OWNED list I chose from what is currently available:
- Linear Tube Audio MicroZOTL MZ3 Tube Headphone Amplifier; Integrated; LPS+ $2,549.00
- Hegel H120 Stereo Integrated Amplifier (1/2) $2,249.00
- Hegel H120 Stereo Integrated Amplifier (1/3) $2,099.00
- Hegel H120 Stereo Integrated Amplifier $1,979.01
- Cary Audio CAD-300 SEI Stereo Tube Integrated Amplifier $3,999.00
- Jolida Audio DJ1000 RC Stereo Tube Integrated Amplifier $1,175.14
- Peachtree Carina GaN Stereo Integrated Amplifier; Gloss Mocha; MM Phono (Unused) $2,771.01
- Peachtree Nova 300 Stereo Integrated Amplifier; MM Phono $1,066.36
- Cary Audio AiOS Wireless Stereo Integrated Amplifier; Roon Ready; BT $1,425.54
- Lyngdorf TDAI-2170 Stereo Integrated Amplifier $2,823.50
- PrimaLuna ProLogue Premium Stereo Tube Integrated Amplifier; (No Remote) $1,551.51
- PrimaLuna EVO 100 Stereo Tube Integrated Amplifier; EVO100 (No Phono) $1,835.10