Fresh from his success in the Rochdale by-election, George Galloway is making noises about standing for Mayor of Greater Manchester:

https://www.theguardian.com/politics/2024/mar/15/george-galloway-may-challenge-andy-burnham-for-greater-manchester-mayor

Will he register for the race and appear on the ballot on for the race on 2nd May?

https://en.wikipedia.org/wiki/2024_Greater_Manchester_mayoral_election

There are no write-in candidates for this election - if Galloway does not register but tries to campaign for people to write him in anyway, spoil their ballots, vote for his proxy candidate or anything else like that, the market will still resolve to NO.