SET amps

What tubes are a good balance of great intimate sound and budget? Any suggestions for amp kits and builders? $1500 budget Or so. Any options?
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Also my first tube experience was with a primaluna prologue 2 which I had for years and just recently sold.. right now I’m running a nait 2 with omega 3xrs in a listening area 13x15 but the rooms are open concept. I find the nait 2 in the room too shrill but my listening area is very very lively. Still I enjoy the nait. Just looking for the next step. 
I would go to HiFiShark and search for names of amp builders like Burgess, Deja Vu, etc. These are small-batch builders who make a good amplifier at a reasonable price - especially if pre-owned. Good 300b tubes tend to be expensive.
I started with the Primaluna PL2.   Moved to a Decware Mini Torii using the same speakers (Ref 3A de Capos).  Can't play as loud but loud enough and a very sweet sound.  It's a single ended pentode design.
There is an audiophile who keeps a blog called Glow in the Dark Audio. He has written reviews of many different affordable set amps. You might want to check it out.
Thankyou Riley mentioned the site and it’s been helpful.