This is the stuff I use for electromagnets and motor repairs.

https://www.remingtonindustries.com/magnet-wire/magnet-wire-24-awg-enameled-copper-8-spool-sizes/

I usually order direct, but you can get it on amazon as well.

https://www.amazon.com/Remington-Industries-24SNSP-Enameled-Diameter/dp/B007OYG9HS

You'll need a smaller gauge of course.

Remington is usually pretty good, but there are a handful of sellers on amazon that'll ship you damaged spools or knockoffs. (and even direct order, we have gotten a few bad spools. We've had no issue with returns so far.)

When I do need to order through amazon, I usually stick to "fulfilled by amazon" sellers, so that I can return it or get a refund in a reasonable amount of time.