I currently have three H5 maps in a very basic stage of development, I want the Forge community to vote on which map I should finish and leave feedback on how it could be improved. To vote you only need to view the video, comment the map, what it should be called, and what you think could be improved in it. (The video)
i'm going to take one for the team and be "that guy." I would be really surprised if this worked out anything like you are expecting it to. There are maybe, MAYBE like 3 people on forge hub who could get other members to vote on which WIP they should work on- let alone all the other stuff. I think you would have much better luck developing your own ideas and then posting a WIP thread. If someone seems to like what you're doing and you ask them to co-forge they likely will. Best of luck bud.