There's a blue underlined link on the sidebar of this page that says davidson database. That has a lot of articles by professionals. Hoagies.org also has lots of articles by professionals (psychologists, teachers, etc). And of course you've found this forum, great for talking to real people here at the congregation of frustration. There's another forum if you sign up for davidson young scholars. That requires an application process and qualifying test scores.
Here on this forum I have seen people talking other people through the advocacy process every step of the way. It's apparently an ongoing journey. Even if you don't homeschool many parents do an informal supplementation called afterschooling. There's a lot of great stuff going around now. A lot of it is online self- correcting edutainment.
Oh yeah, if you do the DYS application and are accepted I think there's a secure chartroom for the PG kid's to be there with each other.
When the kid's are older there's what they call "talent searches" which sounds a lot like overnight summer camp the colleges host for the gifted kid's (starting as young teenagers). There's the good news. There's a lot of fun stuff and programs to do.
I don't have a one time single answer that will make it all fit nicely. You do have an active, supportive, creative, enthusiastic forum here to help you vent, brainstorm, and celebrate.
I have to wrap my brain around what the educational consultant told you.