I think that if Mike Pence turns against Trump before the House January 6th committee and does it well he might eventually even be president

How does this all work?

The problem is that Pence was almost killed by Trump's rioters on January 6th 2021 along with his family who were there too to watch him during the electoral proceeding.

So, the question becomes: "How upset is Pence that Trump almost got him and his family killed that day?"

If it were you or me we likely would choose to "Deep 6" Trump and become the foundation of "Mike Pence for President".

But, what is going to happen in reality?

That's another question entirely.