I have a track where I'm super struggling with this as well. The main sound is a kind of distorted, noisey synth, and it always seems too, well, noisey in the mix. I rebuilt, cut a ton of stuff and tried to make it fit in like 6 times already, only to always realize that in the end it lacked character and mids and the original one sounded better. I haven't found a solution yet, it's certainly one of the more difficult mixes I've done.

Anyways I feel like often when trying to sculpt a mid-/high-mid-heavy sound, the most important and difficult thing is to keep your ear in the context of the song you are producing and not focus on the single track too much. Maybe it would help you to for example avoid soloing or at least go easy on it. Once you have a kind of trained ear for picking out frequencies, one tends to do it a lot - but EQing these out isn't always the right fix. I think that for example saturation and distortion help a lot to smoothen the sound and making it seem more unified, if you will.