It's nice to see GOP might have a choice that's not Trump, DeSantis, or Pence.
GOP strategists and the RNC will likely have to take a number of things into consideration when determining who to throw their support behind.
I doubt Pence is on the top of anyone's list at the moment (speaking of both the more far-right wing and the more moderate wing).
Our party politics here in the US has a regional component. Meaning, what plays well in certain regions for a party doesn't play as well in other regions.
Both parties have their "stronghold regions", in which the further a candidate goes in their polarized direction, the more popular they'd be in that region. (West Coast for the Democrats, Deep South for the Republicans).
However, the Republicans have a few particular challenges that the Democrats don't when it comes to traversing that dynamic.
1) The GOP's "stronghold region" is more likely to "self-sabotage", meaning that they'd stay home or write-in the name of a more extreme candidate on election day if they felt their party's nominee wasn't sufficiently committed to "owning the libs". The Democrats seem less likely to try to sabotage a moderate from their own party. (as evidenced by the fact that people in the far-left West Coast still came out in droves to vote for Biden even though he was far from their first choice)
2) The GOP's stronghold region encompasses so many electoral votes that they don't have as much wiggle room to ruffle those feathers. By my tally, they have 124 electoral votes wrapped up in states where there's no intention to compromise on a moderate. All it would take is picking a candidate they didn't approve of, and the hardcore portion of their base stays home and they could potentially lose in some of those states. And the Moderate & Swing states they could potentially get by running a Larry Hogan or Chris Sununu wouldn't be enough to backfill those votes. Whereas, the DNC strongholds of California and NY are "blue no matter who" type voters.
3) The Florida conundrum. Florida voted overwhelmingly for DeSantis, they like him down there. Trump's margins in Florida were pretty thin. Florida's worth a lot of electoral votes. The GOP can't win without Florida. If the RNC backs Trump (and he's just got done smearing the guy Floridians like), that could cost them Florida. However, there are other states where Trump is more popular, and the inverse could happen in those states if the RNC backs DeSantis.