Looking for wider soundstage

What exactly do you mean by “soundstage”?  Do you expect the image to spread out past the outer edges of the speakers?  That can happen, but in my experience, that is a product of the recording. I’m thinking you just want your hifi to sound better than it does to your ear. Legacy makes good speakers, but sometimes even excellent speakers just don’t work in someone’s room and, without redoing everything, there’s nothing that can be done except change the speakers until you find something better. You didn’t mention your speaker cables, but sometimes a speaker cable can make a transformative difference and sometimes nothing. See if you can borrow something from a dealer or a friend and try it out. I know Kubala and Synergystic have a 30 day money back and I’m sure others do as well. It may be worth a try. If you happen to live in NY, I may have something for you to try.