Which phono preamps among these three?

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?

No particular reason. As I said in my first post, I just picked those three because
1. They are on sale in audiogon
2. They are within my budget (with stretch)
3. They all seem to have very good reviews and followings

So, I might go for any other phono that falls into $1000~2000 with good reputation. Up until 6 months ago I was pretty happy with BAT VK60, VK30 with phono, Yaqin MS-12B, and Budgie Cinemag SUT. Since then my amp has changed to Plinius, and I acquired Hashimoto HM3 SUT. A phono pre that works well with Hashimoto SUT would be a plus.

I tried once manley Chinook with a great result.

I was always asking this question why Atmasphere doesn't have any stand alone phono preamp??!! I like very much so their products and Mp-1 is in my list for next line stage!