The immediate polls I saw about the situation, a majority of Republicans supported what happened! Admittedly not big numbers in the polls.
Who will the non Trumpers (laughably including Lindsay Graham) coalesce and organise around? There doesn't seem a stand out, albeit my knowledge may be lacking. They really will need to organise as Trump has already got his base.
The numbers I saw suggested that 40-45% of Republicans supported what happened. Which is a shockingly high number, but not a majority.
Which again I think means that we're going to see one hell of a barny for the soul of the Republican party - first with the Congressional elections in 2022, and then particularly with the Republican primaries in 2024.
I don't think the establishment will coalesce around anyone in advance - but I do believe that they will be more disciplined than they were in 2016 (when Rubio, Cruz & Kasich were all still going and splitting the anti-Trump vote past Super Tuesday II) , and coalesce around someone to oppose whoever the MAGA candidate will be within the first few states.
The Democrats provided the model this year. Their establishment was terrified about Bernie; they let the first few states play out but when Biden won big in South Carolina, that confirmed that he was their guy and they threw everything behind him.
As to who? Too early to say, but could be someone like Nikki Haley, or Marco Rubio, or Tim Scott. Maybe Pence himself.
If the MAGA candidate isn't a Trump, then could be Ted Cruz, Josh Hawley, Tom Cotton, Ron DeSantis or Kristi Noem.
There's plenty of possibles and they're going to be ranting, raving and stabbing each other in the back for the next four years!