6 suggestions

James Marsden
as Superman in Dream DCEU

Phoebe Bridgers
as Stevie Nicks in Rumours

Tom Ellis
as Mick Fleetwood in Rumours

Shia LaBeouf
as John McVie in Rumours

Florence Welch
as Christine McVie in Rumours

Glenn Howerton
as Lindsey Buckingham in Rumours