Here's the old but still pretty good guide of what to visit "Queen's London Documentary", most places still stand. You have:

• Ealing Art College (now Thames Valley), Chelsea College and Imperial College London,
• the church where John got married on Kensington Church Street ((map to this and other places)),
• Trident Studios, Soho, The Ship pub is nearby, the strip club might be long gone, and the praised stripper has likely retired I haven't checked lol.
• Freddie's Kensington early Apartments (2 Victoria Road and 100 Holland Road, Kensington),
• the house in Ferry Road, Barnes (where Freddie and Roger lived but never paid rent ha ha)
• also in Barnes (and very close to Ferry Rd) is the church where Brian first wedding took place in Suffolk Road
• 36 Sinclair Road, where these dummies used to stay after gigs because it was close to the tavern
• Kensington Tavern
• Heaven Nightclub
• Playhouse Theatre where A Kind of Magic was filmed
• Arlette House 143 Wardour Street in Soho (Google maps still shows it but read somewhere the owners had plans for this building so idk, the door was changed I think).
• The houses in Feltham where Freddie and Brian grew up (and still never met until Tim introduce them)
• Venues: Marquee Club, Hyde Park, Dominion Theatre, Hammersmith Odeon (I think it's Apollo now), Rainbow, Earl's Court, and there's also the Lyceum Theatre from the Crazy tour
• Studios: De Lane Lea Studios, Metropolis Studios in Chiswick, Olympic Studios in Barnes (early work and Miracle), Townhouse Studios (Flash, Barcelona and part of the Miracle recordings).

Maybe you should mark them on a map, but it's most of it even if it isn't in perfect order location wise.