Dipping toes in tube preamp pool!!


Looking for my first tube preamp. Need some advice on my short list of candidates! My system has been put together over a couple of years and stands as follows:
PS audio M700 monoblocks
Innuos Zen MKiii
Bricasti M3
Oppo 203
Ascend Acoustics towers with ribbons.
Room treatments at first reflections and rear wall.

The list I've put together is as follows.
Atma-Sphere MP3
Microzotl Linear preamp
Backert labs Rhumba 1.3
Prima Luna Evo 400
I don't have a turntable at this point but would like to add one down the road! I don't listen to headphones and don't see that as an addition. They all fall in the 4k to a little over 5 range. Would like to stay in that ballpark. Musical tastes are all over the map!! Current top artist in Roon is Depeche Mode but Sade is a close second🙂! From the conversation I've had with the listed above, they all say the pres would play nicely with the M700s.
Looking for advice on which may be the best way to go as this is definitely new territory!!
Thanks in advance for your help!!
jimfinn2112
+1 on the BHK; just makes a lot of sense, very fair trade in program if you chose to go new
Probably can't go wrong with any of these but one might differentiate itself in your setup. I owned the Backert Rhumba 1.2 and now own the 1.3 Extreme and to say I am pleased is an huge understatement. The only way to figure it out is to get them in for a demo?
Jim, I was in your shoes some 15 years ago. I had a fair solid state setup, but wanted something more. I explored tube preamps and opted for a used Audible Illusions line-stage preamp, cost $500 bucks. When plugged in I was ASTONISHED @ the improvement in the warm quality of the sound and the improved soundstage. I recently upgraded to a NEW Audible Illusions L3B, cost more but still great. The AI has been around 30+ years, lots of used ones about. Has been reviewed in Sterophile and most recently in The Absolute Sound. Check it out, I think you could be pleased. Check my other contributions to the Audiogon Forums to see my total setup.