What’s your price range? Woot has had a Klipsch wireless system with 4 bookshelf speakers, center speaker, and subwoofer (all wireless) plus the needed hub a few times recently for $1500. Currently sold out: Klipsch Reference Wireless 5.1 Home Theater System Klipsch Reference Wireless 5.1 Home Theater System .
You could currently buy each wireless speaker and the sub separately. But you’d have to get the wireless hub somewhere else, I believe.
(Just look in the Electronics category)
Here’s the bookshelf pair to start: Klipsch RW-51M Reference Wireless Bookshelf Speakers - $369.99 - Free shipping for Prime members Klipsch RW-51M Reference Wireless Bookshelf Speakers