Leaders of the Liberal Party of the United Kingdom:
1931-1937: Philip Snowden
1937-1946: Winston Churchill
1946-1952: Bertrand Russell
1952-1964: Harold Macmillan
1964-1972: Michael Foot
1972-1976: Harold Wilson
1976-1986: Margaret Thatcher
1986-1992: Tony Benn
1992-1999: ???
1999-2007: ???
2007-2015: ???
2015-present: Liz Truss
The only idea for a classic British politics-TLIAW I have ever had that I felt sort of could fly was an idea I had about doing one about the alternate leaders of the Liberal Party of the United Kingdom, but every name on the list is someone who either at one point were a member of the Liberal Party (like Winston Churchill), or strongly flirted with the idea of joining the party (like Harold Macmillan), or came from a family that was strongly Liberal (like both Margaret Thatcher and Michael Foot), but who fundamentally became remembered as being associated with one of the Big Two.
The idea was going to be that the Liberals still fall into their historical decline to only holding a handful of seats, and the parliamentary party can fit into a single car, but it's now these characters who are leading them. It felt cool, this idea of Marget Thatcher and Harold Wilson being engaged in a vicious, bitter factional fight over who would get to have the honour of the two of them to lead the other 9 Liberal MPs in Parliament, and Winston Churchill being this very junior minister in the War Cabinet.
Problem is, there were some gaps where I couldn't come up with sufficiently high-profile names, and then I sort of felt that, you know, this was more a thing I wanted someone else to write so I could read it than I wanted to write it myself.