Hey Sleepyguy24,
The Mullard and Amprerex 5ar4 with 2 halo getters from the late 50's and 60's. They cost much less and are very good.
If your system is already on the warm side try the new Gold Lion Cryo 5ar4 they are very good for new stock and cost around $45.
In my system they are more dynamic, open, detailed, and throw a big soundstage.
I like them better then my old 5ar4's, YMMV.
Joe