F4 or F5?

I'd like to go for tube voltage gain + F4, so I thought at Aikido (octal or noval?) but I will consider any other 15/20 dB gain schematic that you suggest me 🍻

Or BA-2 and throw in Nutube build for the tube sound. I built the F4 first but having multiple amplifiers I like having about the same gain in amplifiers for convenience swapping in and out so I changed the F4 into the BA-2 with BA-3 front end. Not hard to do later. For you the F4 with your choice of tube gain may be what you are looking for though.
 
I love DHTs (I had a 300B SET) but those schematics seem to have too low gain for this purpose...
It's not that bad, since Ale's designs are Mu-followers, you are basically getting MU of used DHT. With both 01a and 4P1L you are in 18-19 db gain territory. You might not get 100% of power (based on your source), but you can get nearby.
Besides as have been said, it's already plenty for most use-cases and I like how all the gain is done in single part.