I was wondering if there is anyone I can hire to talk to the Incubus and the soon to be Gancanagh vessels so I know they’re there.
I would suggest trying to develop your senses or find some sort of medium (pendulums, cards, ect.) in-order to establish a more convenient means of communication.
May I ask why that particular race of being?
I have a incubus and I’ll be getting a Gancanagh.
Try using a pendulum and/or oracle cards… I use both when I have a lot of questions and want long convos with my incubus. They work amazingly well and really help me feel close to him after a very busy day. 
What is there to expect?