That’s a pretty subjective question but the answer is, it depends. Budget will always dictate the range you have to work with. Do have speakers in mind, or in use that you like? If you do, start there. I am a jbl user for a long time, but I’ve looked really hard at KEF, GE, revel, RBH and the other usual suspects. My experience with klipsch has been not amazing but they do have plenty of fans, and can rock out.
Edit: you will probably get a bunch of recommendations for bookshelf speakers to go with it, but I’ve just never really embraced them. Granted, a bookshelf with the best components and build quality will surely outperform a tower with mediocre build and component quality, but I don’t really qualify something like a single 6-1/2 with a 1” tweeter much of a tower. That’s just a bookshelf with a built in stand. IMO a real tower would have a number of 6-8” woofers or a pair of 10’s a 6” mid and a tweeter or something to that effect. So it kind of depends on what you mean. But things are relative, and you must pay to play!