I think depending on what kind of crowd you're with, "person with disabilities" is the best thing to go with until/unless someone asks for another term to be used. In my experience, the vast majority of people are much more casual about it and say "disabled people," which I think is fine and is personally what I say. For some reason, there's also a rhetorical habit where, when you're talking about disabled people as a segment of society in a slightly grander sense, then they are often referred as "the disabled". I don't know why, and people who are really interested are likely to tell you that it's not ideal for the same reason as saying "blacks" or something.

Anyway, I'm not the person to ask since I'm not really part of that group, but I appreciate that you are seeking out input, so I did my best!