Elaborating on comments that were made above by Marco (Jax2) and Phaelon, in narrowing down your list of candidates I would encourage you to consider the constraints on amplifier selection that each candidate would represent. For instance a speaker that requires the amplifier to be able to provide high power capability and high current capability, in addition to providing sound quality commensurate with the quality of the speaker, could very conceivably necessitate an amplifier investment comparable to the cost of the speakers, or even more, as well as constraining your ability to change amplifiers in the future.
As an owner of the Daedalus Ulysses speakers that were recommended above by Marco, I can attest to the fact that they are exceptionally versatile in terms of amplifier selection. They represent an easy load by any definition, they don't require a great many watts, but at the same time they can handle large amounts of power if necessary. And they definitely do not have "sharp/ringing highs."
Coincident speakers are another well-regarded brand that comes to mind that provides both high efficiency and benign impedance characteristics.
Good luck in your search.
Regards,
-- Al