Reality checks for context and form dream signs

What kind of reality checks should I do if I have context and form dream signs?

I am not sure if in understand your question correctly. Normally reality checks are quite independent of the dream scene. So no matter what dream you are trying to incubate or what dream sign you are expecting to find, any RC will do. In some situations maybe it’s opportune to do a specific RC but this is very individual to each dream and context, so I can’t give you advise with my current level of information.