I had a similar issue on balancing over powered abilities with on race I wanted to create. The core concept was that they could manipulate perception, essentially having the ability to change how anyone in their range perceives the world. Not quite mind control, but perhaps a bit worse since the person is still otherwise of sound mind. Plus it's not just one person, but a whole population.
I balanced it out using social structures, both from within and without. I wanted to think on how things might evolve, especially since their powers also work on each other. From within, the race is deeply religious, with three religions that dictate how, when, and to what degree they use their abilities. One religion, worshiping truth and called seekers, all agree on a single interpretation of reality. Their abilities might alter perception, but never to a significant degree. The second, worshiping illusion and called weavers, tend to view the world from a personal lens, but they strongly respect others' perceptions as their own, and restrict any ability usage. The third worships both deities and finds a balance between them, but isn't particularly a focus in the narrative.
From without, things center around the fact that this entire race came from another world. The other races in the world are all terrified of them. So they walled the entire race in (literally) after a brief war, and established a police unit that babysat them whenever they left, using magic to make them immune to their abilities (but that has other side-effects). They also require them to be visibly marked in public. They're not particularly well tolerated so they rarely leave their designated land.
I've mostly stopped working on this stuff, but it amuses me to see so much of what I thought up come up in other stories. When I first though this story up (which is entirely several layers of isekai), I had never heard of the concept, and thought it rare. Clearly not so much any more! Plus I was floored reading Goblin Slayer and encountering the little side chapters with Illusion and Truth, because it was so similar to what I had thought up.
