Consider this healthy alternative. Style shouldn't mean compromising health.

https://peelaboo.com/

https://www.instagram.com/littleondineus/?hl=en
Review: https://raindropsofsapphire.com/2018/07/20/odourless-nail-polish-by-little-ondine-review-it-has-no-smell/

Review of different brands:
https://ecocult.com/green-beauty-review-testing-11-non-toxic-nail-polishes/
https://helloglow.co/10-best-non-toxic-nail-polishes/

Basically look for odorless, non toxic polish. Also, look for the kind that peels off, so you avoid using harsh chemical removers, and so it's durable.

Would you like to make your own, or start a business?

How to make nontoxic nail polish:
https://draxe.com/beauty/diy-nail-polish/
https://pronounceskincare.com/diy-nail-polish/

She's not wearing protection, but please use proper PPE if you decide to do this, especially if you start a business. The ingredients are nontoxic, but they still have potential to harm you if not handled and stored properly.

https://www.youtube.com/watch?v=p1vL2vV5bBU

Safe handling instructions:
https://www.naturalpigments.com/art-material-safety-handling
https://www.earthpigments.com/safety-guidelines/