Here are the possible contenders to replace Boris Johnson as U.K. prime minister

https://www.npr.org/2022/07/07/ [login to see] /boris-johnson-possible-contenders-successor-uk-conservative-party-prime-minister
British Prime Minister Boris Johnson resigned as leader of the Conservative Party on Thursday. He said he will stay on as prime minister while the party selects a new leader.

Given that the Conservative Party won the last election in a landslide, the country won't necessarily have to head to the polls again. Instead, next week, a small group of Conservative legislators inside Parliament — known as the 1922 Committee — will determine the rules for a new leadership contest that will help select Johnson's replacement from among the 350 or so Conservative lawmakers.