KR does make an awesome KT88 and it looks like they will re-introduce a KT150. KT88 is $200 each, KT150 I expect to be ~$450 each. A lot more than Tung-Sols but...at least you can get them. They will develop a KT120 for me but I need to order 1000. More than I am willing to commit to at this point.
JJ is obviously Czech republic but I looked and it appears that they are sold out until June. Not sure if they can produce fast enough to meet demand.
The other not mentioned here is Emission Labs which is also Czech Republic. Jac will also introduce tubes but you need to have a sufficiently large opening order.