Budget?

I’ve seen some Polk towers recently that fit your bill (mostly used).

Example:
https://www.audiogon.com/listings/lis9djd8-polk-lsi5-floorstanding-speakers-gloss-black-pair-17389-f...

What amp do you have, how large is your listening room and how loud do you listen to your music? In that price range, the type of music you listen could also play a role. Finally, what are you upgrading from or are you starting from scratch.

Silverline Preludes if you can find them. Last I knew they retailed at $1500 new so should be able to get them for around $1250 or under 1k used.