I'm not sure how one goes about finding their dream guide! Mine found me As it was, I've known my dream guide long before I came to DV, so... that one I can't really help with.

From what I have seen others do in past posts... is I guess when you're lucid you can ask or request that your dream guide appears. Some people aren't good at summoning characters, so another option is to say, spin and they'll be there/open a door and they'll be on the other side/turn a corner and they'll be walking towards you.

That's all I got