I‘m currently running my amp with two 300B tubes from Western Electric (from current production).

I‘m wondering if there are any “better“ 300B amps available that would better the sound? Of course, this is very much put o personal preferences, but in your mind, have you decided for other 300B tubes after hearing the Western Electric 300B tubes?

Elrog are often said to be the best. Then again, some people are amazed by Takatsuki tubes. What exactly makes those tubes better? Anything else to keep in mind?

There is another discussion in this review article that you might enjoy:

https://v2.stereotimes.com/post/the-quick-and-dirty-300b-tube-shootout/