I agree look into fixing your MLs, especially if you like them and if it’s that easy. That aside, what improvements would you be looking for with new speakers if you go that route?
If you live in the northeast just go pick these up if they’re still available. I’ve heard your speakers and these will stomp your MLs into the ground on every level.
https://www.usaudiomart.com/details/649878811-joseph-audio-rm25si-signature-speakers-with-750-upgrade/