Wow! That gave me an idea!

Maybe the crawl explains that Kylo Ren is searching for a rumored hidden fleet that he can use to dominate the galaxy. The Resistance learns about this and wants to stop them. The fleet becomes the macguffin.

Later in the movie, when Ren finally finds Exegol, we discover that Palpatine has returned!!

The order could go like:

Rey Training intercut with Kylo on Mustafar
Poe and Finn’s mission
The Resistance briefing - The largest fleet the Galaxy has ever known is hidden on Exegol (presumed to be abandoned), and the First Order almost has it!
Ren builds his mask again to block out the ‘calling to the light’. (If going by what Snoke said in TLJ, the Force is starting to ‘even itself out’ now that Palpatine has returned, pushing Kylo further to the light.)
Rey and Friends go to Pasanna.
Rey and Friends go to Kjimi
Ren finds Exegol and Palpatine. Palpatine seemingly recruits him.
Rey and Friends at The Death Star
Ben is redeemed

etc etc

This is very rough but something like this might be able to work