Currently I use the excellent TLCV to do live broadcasts of tournaments that I run.
However, it is difficult for many to access, as it requires technical knowledge regarding permission settings.
Ideally, it would be good to have a viewer that can be accessed in a similar way to the TCEC one, where moves appear on the board immediately as played.
Such a viewer should also be able to show the thinking of the engines while they're actually on move (not a feature of the TCEC viewer).
I'm not a programmer, so I have no idea of what to do, but hopefully some here might have the skills to make such a viewer.