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. http://www.glowinthedarkaudio.com/amps.html
Thankyou Riley mentioned the site and it’s been helpful.