Which phono preamps among these three?

"I one time listened to Plinius M16P preamp with phono. That phono was exceptionally good. Much better than the phono card that came with BAT VK30. So, I would not mind going for a full function preamp with phono if the phono section is at least as good as Plinius M16P."

In that case, I suggest you try and hear a Shindo Aurieges MM. However, if you run an MC cart, you will need a transformer. I have also heard the Kevin Carter designed Art Audio phono stage. It was very good, so the K & K suggested above should be excellent.

Re the standard bone stock non-Signature version of the Rhea: I am a fairly advanced DIY guy. From where I sit, the Rhea uses pedestrian REL polypropylene and metallized polypropylene capacitors at critical points in the circuit. Indeed, my inherited Janus did not blow me away with its performance in a very full out system, albeit the Rhea seems to sport a more elaborate phono circuit than does the Janus. I probably heard it the way Doug describes it somewhere here. I then replaced the coupling capacitors of both the phono and line stages with some polystyrene film and foil types that were lying around in my stash of parts. The results were a revelation; in every way imaginable the sound was far better. So good that I decided to spend a little more money on Vcaps. There's not much else you can do to the Janus/Rhea because of its very sophisticated switching circuitry. So far as I can tell from photos, the main advantage of the Signature version is a capacitor upgrade. If you can afford it, go for that version. OR, get a competent tech to upgrade the capacitors in the plain Rhea. I think this latter strategy will go farther than tube rolling can ever take you, for less money.

It's a testament to the experience and civility on this forum that comments like mine are followed by nuanced insights like the posts from Plato, Nestell, Jperry, Rwd and Lewm. On some forums, comments like mine might attract antagonism from outraged owners who won't tolerate anything but adulation of a favorite component.

Re-tubing or (especially) upgrades of pedestrian coupling caps would unquestionably improve the Rhea's clarity, speed and dynamics. Glad to hear that some have done so. I'd actually hoped that mentioning that I'd heard only the base/stock version would bring this out and you guys came through.

This thread demonstrates just how complex and individual audio improvements can become. It's either the bane of this hobby or one of its joys. ;-)

So far, I've had (and heard extensively) Clear audio micro basic MM/MC, Cary Audio PH-1, Yaqin MS-12B, BAT VK30 with its phono, and NuWave Phono pre phono converter, and Plinius MP16P with its phono. MP16P is by far the best, far better than VK30's phono. Yaqin is pretty close to VK30 phono. PH-1 and Clear audio were less than others. NuWave is very convenient for recording LPs, but I feel other $1000-ish phono pre can do better (it is currently for sale).

Currently I am using SPU Gold, SPU mono, Ortofon SL-20, SL-15E, MC20, and Denon 103R. I also have Ortofon MCA76 and Hashimoto HM3 SUTs for MC cartridges.
So, my experience on phono preamp is quite limited.

My rest systems are: Plinius SA102, CD-LAD preamp, Garrard 301 with two tonearms (Ortofon RMG309/SPU-Gold and AS212/SPU-mono arms), and Clearaudio Bluemotion/other cartridges, and Tyler Linbrook Signature Systems, and Apogee Diva.

K&K Maxxed Out, Fosgate, Herron VTPH-2 all seem to be within my grep (for used with stretch), but used ones of those don't seem to come often for sale.

Allnic 1201 looks appealing too.

I might decide within a couple of weeks.

Again, many thanks for all suggestions.

Any particular reason why you are limiting yourself to the units mentioned?