Preamp choices:Short list

MicroZOTL preamp. Sells for about 4,500.00. I also have the Supratek Sauvignon and I like the MicroZOTL better.

Go with the BAT Preamp. I have a VK50-SE that I acquired last Summer. I love it ! I too prefer a Fully (and truly) Balanced Audio chain that a Single ended one. With XLR, you can hot swap cables without worrying about blowing things up. With RCA, you can’t by design.

I'm also not a fan of point to point wired Amps/Preamps. PCB's are the only way and I've been Troubleshooting them for over 25 years. Much easier to repair than point to point (even if a trace gets burnt now and then).

I like my new Luxman CL1000 and I only play SACDs and CDs. Also, I like the ARC Reference 10 preamplifier, but then, I am an old tube guy.

@mazian what is wrong with balanced, in what way would SE be better?

Consider looking for a VAC preamp.  All previously made equipment is still fully supported by the factory and the quality and sound is exceptional.