If buying new I would go with a boutique brand. People say all kinds of BS about the Tekton’s cheap drivers and all that. They actually are pretty good drivers and implemented well. I doubt you could diy most Tektons for what they cost. My old DIs did some things better than way more expensive speakers. No I don’t think they were better than most 30k speakers as the hype says. They were however I’m pretty sure better than anything else at 3k or even in the ballpark.
On the other hand if I was spending 5k it would not be new speakers. 5k gets you a hell of a speaker if willing to buy used. Think 10-12 years old speakers that were 10-15k at the time you can get for %75 off. Not much risk there. My Pioneer S-1ex are better than the Tektons and I paid the same for at the time.
Ramping that budget up to 15-20k I don’t know. Probably some Focal Sopra.