It’s an extremely personal choice that’s not so different than choosing a favorite beer or who you think is beautiful. We can tell you what we like, but you’re the one in the executive decision seat. It’s very subjective.
Speakers are also quite room dependent (and system dependent). It’s wise to pick the speakers, then get an amp suitable for driving them. (I do like tubes) If possible, try as many in your home as you can. Used can be a great way to get the most for the money if the right deal comes along, but are harder to audition in your home...however, they tend to resell for close to what you paid, should you change your mind. Good local dealers are harder to come by than they were 20 years ago. Kits are another good option for getting a lot for the money, but are also difficult to try in home, and tend to not resell as easily.
The BBC sound leans toward a smoother rich more refined tone with subtle details. Horns are typically more lively and more efficient.
Some names you might consider that weren’t as common two decades ago - Joseph Audio, Usher, Sonus Faber, Fyne, Revel, Magico, Totem, Gershman. I’m sure others will offer more suggestions. Active powered subwoofers are plentiful now too, and are a great way to fill a large room with solid bottom octaves without having a monster main speaker, and can help the main speakers sound clearer by removing the responsibility of producing the lowest octaves. .
My advice is to buy what you love, but finding it is the hard part! Enjoy your search, and good luck!