Short answer, no.
You can’t easily improve dynamics, dispersion or bandwidth via equalisation. Not without introducing additional distortion artefacts.
However you could make their frequency responses sound a lot closer.
In fact quite a few people already do this with headphones.
They simply dial in their saved preferred equalisation via the method of choice for every headphone they use. I tend to use some equalisation for every headphone I use. It’s not always easy as what can sound like an improvement with certain music/recordings can sound like distortion with other types.