When I bought my first tube preamp, a ARC SP-3a in 79(?) I bought maybe six different sets of tubes for it. Each had its own sound and I settled on the a Amperex 12ax7. Now I have an SP 9-MK ll that uses 6dj8’s and I basically did the same thing and ended up using Amperex 6922’s in it.
Half the fun of this hobby is trying new things and seeing what hat they do, good or bad.
All the best.