A sudden idea, written for fun, I don't know if it will be a trap.
Never mind that Godric keeps a diary and never mind that Godric is probably a bit like Slytherin, duh.
CP Godric Gryffindor x Slytherin Salazar.
As for other CPs, it depends on the plot development.
Follow the original settings of JKR and try not to collapse.
All kinds of research parties are welcome to make appointments.