I’m not of the opinion that you need to go nuts for rear surrounds (unless you’re serious about multichannel music) as they only reproduce ambient sounds. I think decent wireless monitors are really all you need, and you don’t have to go through the hassle of running wires. I’d think something like these would be fine…
https://audioengine.com/shop/wirelessspeakers/a5-wireless/
Just one thought, and best of luck.