It's a daunting task to research new equipment. When I decided I wanted to get back into tube gear, I spent at least 6 months reading various disicussion forums before buying anything. I started by exploring the various amp topologoies (push-pull, single ended, parallel, etc.) until I decided I definitely wanted a pair of SET (single-ended triode) amps. Then I spent a considerable amount of time deciding which tubes (how much power), and then what brand of amp.
You may want to start by figuring out what the minimum amount of power you need for your speakers.
You may want to start by figuring out what the minimum amount of power you need for your speakers.