The 14th Doctor Adventures: Beyond the Vale by TheEndlessDoctor [Reviews - 0]
The Beyond Adventures was a Series... dreamed up as an experimental alternate 14th Doctor season that would have taken place in the early months of 2023, as a full season-length of episodes to explore David Tennant as the 14th Doctor. This series contains loads of crossover references to other universes (most prominently with "Welcome to Night Vale").
Characters: The Doctor (14th), The Doctor (WebCast 9th), The Master (Author-Created), The Time Lords
Series: Doctor Who: The Beyond Adventures
Easy as Breathing by lurking_latinist [Reviews - 1]
Shirley and the metacrisis energy. (Shirley Anne Bingham; spoilers for The Star Beast.)
Characters: Shirley Anne Bingham
Series: None
The Mavity of the Situation by Daystar Searcher [Reviews - 3]
The TARDIS cannot let this stand.
Characters: Donna Noble, The Doctor (14th)
Series: None
'Say Something' by TDARFSWR [Reviews - 2]
The 14th Doctor is about to regenerate but before he does there remain things left unsaid between him and someone he thought he would never see again.
Characters: None
Series: None
WHO am I? by janai1 [Reviews - 1]
The Doctor has just regenerated. Into an older version of a former self. Confusion reigns.
Characters: Donna Noble, The Doctor (14th)
Series: None
Focus by Adrian Tullberg [Reviews - 3]
Immediately after Power of the Doctor. Slight crossover-adjacent?
Characters: None
Series: None