January 5 - In honor of Spyfall, crossover of all kinds (Doctor Who) for Anonymous

Oh! Well, there are a few, I'd like a crossover with Doctor Who:

• Avatar the Last Airbender/Legends of Korra
• Deep Space Nine (Possibly because I really am into an idea of a regenerating/reincarnating immortal support group.)
• Stargate
• Farscape, maybe John meets the Doctor first as Nine around season 3? And then again as Twelve or Thirteen post-series with Aeryn and John
• Legends of Tomorrow (for the shenanigans)
• Buffy
• Firefly
• Other Star Trek: Voyager and Discovery

I already wrote a Person of Interest and Criminal Minds one, sort of.

In-Universe crossover: Thirteen meeting Bernice Summerfield, Class, and the kids from Sarah Jane Adventures