The denver area has a lot of resources for gifted education. The gifted development center does testing and has lists of schools that do gifted education in denver.

We have looked at lots of schools in denver. In my opinion, the Logan School is the best gifted school in the metro area. Its a private school, and it requires siblings to meet testing to get in.

Cherry creek is consistently one of the top school districts, dont know much about gifted there.

You have missed the deadlines to apply for many metro schools so your first year might not get your kids where you want them in the end.

Good luck