Have you considered the Northshore School District (Woodinville/Bothell)? We are not in Northshore, we're a bit outside, but I'm continually impressed with the organization and willingness to make leaps in Northshore. We know several families with very gifted kids who like the NSD program quite a bit. I've heard their parent partnership/part homeschooling program also has a lot of gifted kids involved.

I would honestly be hesitant to move very far for a gifted program, especially right now. The pandemic is going to mean very hard times for schools, and I expect there will be a lot of budget cutting going on. That seems likely to be bad news for programs like gifted.