JD, you must be checking out a variety of tubes in anticipation.
I did the same and have a small selection.
No real favs between TFK, Brimar, Mullard, and a P.miniwatt in the 12au7 spot.
GE, RCA, Mullard, Phillips, for rectifiers of different configs, ie, 5Y3GT,
5R4GY etc.
0A3 pos....Raytheon
12ax7, seems I`m happy with Sylvania x3 mica.
Still a few to get but there comes a time when you say
enough for now. Well maybe a 12at7 or two.
Ones that got away for now....square getters....bugleboys...
the usual suspects,
Some GZ34 rectifiers are big bucks. My Mullard wasn`t to bad. Listening with it in now sounds good....or different.
Good hunting