The very talented Brian of London has put together a running leaderboard listing those Labour MP’s who are getting shaky over Starmer and who are calling for Starmer to resign.
Here’s the link:
https://starmer.brianoflondon.me/
This leaderboard is updated from credible UK politics sources such Guido Fawkes. On it you can see which Labour constituency MP has turned out against Starmer.
Link
You can find Brian of London on X here
https://x.com/brianoflondon