The last Duxford show had no less than 16 Spitfires fly together, something that doesn’t happen all too often these days. There are MANY videos on YouTube showing this. I picked just one of the better shots for my post. (It seems that just about anyone has a video cam these days, but the days of actually learning how to USE such a bit of kit are numbered. )
Here’s a link with a search on ’16 spitfires’ showing more YouTube videos.
This one isn’t too bad and at least provides a good impression of the display !