Discovery and exploration is fun.😊
Another 8 series tube is the 805. An accessible and affordable example is the Line Magnetic 805ia/ 508ia which 48 watts of pure class A SET. Those who have heard or owned it say it’s wonderful sounding. Some SET afficianos make the point that the lower power SET amplifiers are more intimate, nuanced, tactile and pure in their presentation.
Obviously opinions and taste vary as with anything and it simply becomes a matter of what one is seeking. The higher power SET amplifiers certainly allow for greater speaker choice flexibility. Always some degree of tradeoffs, so just depends on the objectives of a given listener.
Charles