Or just buy a solid state amp and get a tube preamp, get the best of both worlds - great tube sound without having to lug around a tube power section
I love my EBS ValveDrive. Playing with different tubes in it. It sounded great with the stock 12AX7 and I think it’s even better with a JJ5751.
I came really close to springing for a Le Bass but really, the ValveDrive brings all the tube warmth and breakup I’d expect. Great preamp.