Well…
Floquil = enamel
Pollyscale = acrylic
Model Master = Both enamels and acrylics available - check the labels
Testors = Both enamels and acrylics available - check the labels (enamels used to be the most common IIRC).
Humbrol = Apparently both enamel and acrylic available. I think enamel is most common.
Craftsmart = Acrylic craft paint.
My LHS still has Floquil and Polyscale paint display. Understandably the choices are pretty limited. If you were going to throw away either, you might put them on ebay.
If there is a model railroad club within a reasonable driving distance from where you live, contact a rep and inform him/her of the paint that you have. The club might be interested since there is always something to paint, weather, or touch up on a club layout, rolling stock or locomotives. Indivdual members may show an interest as well. Up to you whether you’re selling or donating your paint materials.
Testors is reputed to be an enamel, and acts like it. I like to let it dry a week before handling it.
I think Model Master is supposed to be “the same” as Testors, hence an enamel. I’ve mixed them together for spray painting, and had no problem. I do feel that Model Master is a bit “thinner”, though.
I see, looking at the Testors website, that both of the above also have acrylics. News to me. I haven’t used acrylics, and use that as an excuse.
Yes, I mentioned that in my response above posted a few days ago. To be fair, I only recently learned (last year) that Testors (in the good ol’ square base quarter-ounce bottle) also has acrylics in the same format; must have saw them at Michaels numerous times without thinking about it. Model Master, OTOH, I have had some bottles of acrylic for many years (mostly of colors not found in the Model Master Enamel line at my LHS, like ‘Flesh’). Hence why I cautioned the OP to “check the label”.
Not sure when Humbrol Acrylic was introduced, just learned about it when checking on paints to respond in this thread.
Even the enamel paint was not common in area LHS, so I never got into the habit of using it (although after hundreds of YouTube UK modellers videos, I now know how popular it is - and who doesn’t like the little tins…).