If it is wood you can use a paint stripper like citristrip or you can sand it off with a sander.
If it’s plastic or coated metal furniture, try Goo Off or Goo Gone. It will take off latex paint, but probably not enamel spray paint.
50/50 acetone should work too, but keep an eye on the furniture’s finish, as acetone is a solvent.
I have used Goo Off and Goo Gone many times, as well as citristrip. They all work very well. Here are some videos for you as well.
Depending on what type of finish the paint is on, I would suggest using either nail polish remover or a paint thinner/stripper.
Also, depending on how big the area is, etc you could always use a heat gun and very carefully heat the paint and scrape it off with a metal scrapper. You could try a hairdryer also ...however, hi'm not sure it will get hot enough (??)
If iron, have it sand blsstef.