When the U.S.S. Discovery receives a distress call, they're trapped inside a field filled with temporal energy and find not only the space station known as Babylon 5, but a strange man known only as the Doctor who claims to know everything that's going on, and a heavily weaponized vessel called the Refractory. A crossover with the mentioned categories, and Doctor Who and Star Wars.

Gabrielle Delacour has a mishap while using the Floo Network and finds herself lost in time and space aboard the USS Discovery. Written for Round 4 of THC (year three)

Oneshot: Even a decade later, Tilly remained haunted by what she'd learnt about her Mirror Universe counterpart.

ENT meets DSC when a descendant of the NX-01's sous-chef, an Ensign on the USS Discovery, ends up with the rest of the ship in an unknown universe that, to him, is strangely familiar.

Oneshot: In 2257, the Federation had managed to achieve peace with the klingons through peaceful means. In 2671, as the Confederation fought for its survival against the Kilrathi Empire, humanity found that it didn't have the same luxury of morality.

After Michael Burnham is injured in the Learning Center attack, her foster mother decides to recruit some extra help for the investigation.

Oneshot: Gabriel Lorca and James T. Kirk were two very different captains, but they had at least one thing in common - they both needed their pain.

If there's one thing she knows about Gabriel Lorca, it's that he never leaves her with any doubt about her place in his world. [Lorca/Landry, Janeway/Lorca, J/C. The final piece in Helen8462's and my Disco/Voy crossover series.]

Oneshot: Perhaps Spock expected too much of Michael. She was only human after all.

What a fool she'd been, looking for home in all the wrong places, in all the wrong decades, with all the wrong people. [Part 3 of the Janeway/Lorca and J/C series]

Alice: How long is forever? White Rabbit: Sometimes, just one second. [Prequel/sequel to 'Of Kings and Fortune' and Helen8462's 'For Captains and Duty'. Janeway/Lorca, Janeway/Chakotay. All of this could become non-canon when Disco ep 4 airs, but in the meantime, nobody can stop me.]

Sometimes context is best left to the imagination. [Janeway/Lorca, because Helen8462 asked for it.]