As you say, you're using a variety of paints. That sort puts you in a corner, for using thinners to clean the AB.
If you were using strictly acrylics it would be easy, alcohol will clean most of them well, EXCEPT FOR VALLEJO, alcohol will turn that paint into a real gummy mess. For Vallejo I only used their branded AB cleaner.
I can't think of many things to clean lacquer paint with, other than lacquer thinner or acetone.
For enamel, either enamel thinner or lacquer thinner. I know they all pose a hazard for everyone, unless you have a way to remove the fumes, like a proper spray booth with fan to vent the fumes outside. Even then, having the stuff around where kids are present still leaves a potential hazard, what with busy little fingers in the home.
Perhaps the materials could be kept in a safely locked storage container??
Good luck, I hope you find a satisfactory solution.
Patrick