I'm currently squatting on two plots that I believe are the basis for decently original and potentially good fantasy stories. I'm the type of person who comes up with in-depth plots and detailed worlds for them to take place in, in addition to decent characters, but is unable to actually write the whole novel because of the inability to write the mundane parts in between the plot points that carry the story along, but aren't important plot points. Are there (ideally professional) writers out there who exclusively work with people, helping them write their stories? For instance, I would show them the plot and work with them on fleshing it out and writing the actual story, and if it were to be published, we would both share the credit. If there are no resources such as that, is there any advice you would give someone who has these difficulties?