Valve Amplifier suited for my system

If your speakers are 94 db, unless you are in a small room you might want to consider something with 30-60 watts, depending on your listening habits.

My speakers are about 3 db more efficient than yours and I can run a 30 watt amplifier out of gas (but I sometimes listen at higher volume levels to stuff that can have a lot of bass). That 3 db is represents a doubling of the amplifier power, so to do the same thing on your speakers I would need 60 watts.

How about KR audio amps

Any suggestions for KR Audio VA 340 or Shindo aurieges pre with montillo power

if you want lush, i.e., euphonically colored amplifiers, consider the older conrad johnson amps, such as the mv 125.

I have heard Living Voice IBR-X driven by Shindo and it sounded GREAT. I am sure your other choices are just as good. Try to keep it above your 15wpc mark as suggested earlier.

Another amp you might want to consider is Consonance-Opera Cyber 211
($5500 new) or 300B PSEs' 15 watts . It was compered to famous Audio Note in Enjoy the music review.
Read the review
And nice review in 6moons (Blue Moon Award):
6moon review

To sum it up. Tubes will work great with your speakers.