Are you talking about meeting up in dream time, for real? You might check out the work being done by the Chroniclers (this topic or this topic). Verified “real” shared dreams seem to be kind of elusive to us, for the time being, but if anyone on here can pull it off intentionally, it’s these members.
Alternatively, you can focus your mind on having another dreamer enter your dream (I’ll post my pic in the The LD4all Alphabetical Photo Gallery for this purpose), and either they’ll pop in themselves, or a DC version of them will come to remind you.
Anyways, good luck! I’m sure you’ll figure something out.