Dick and Stevie
Dick
Dick had three relationships, Barbara, Kori, and Bea, and a lot of rumors of dating others. The Ric arc happened differently. Bea and Dick ended their relationship without any drama: Bea got a job offer in another city and moved.
Dick wanted Tim to be Nightwing during the period where Bruce was missing/dead (Stephanie's Batman).
The Batfamily is dysfunctional, but nontoxic, where many of their problems can be fixed with communication and some therapy.
Spyral also happened differently, with the rest of the family being threatened and not being aware, with Dick not being able to talk about what happened for their own safety (similar to what Slade did with the probes in The Apprentice of Teen Titans).
Stevie
Stephanie Grace "Stevie" Rogers was born in Brooklyn on July 4th, 1922. She was sick, as in canon, and she was mostly home-schooled. Joseph was an alcoholic and died when she was about eight or nine.
Bucky was her best friend and joined the army and her unit, but won't be the Winter Soldier.
Her identity as Captain America is top secret.
Stevie had feelings for Male Peggy, but this didn't go very far after him being jealous of Bucky. Optionally, Male Peggy, maybe Patrick, can be the Winter Soldier, instead, possibly dying in the future.
Appearance wise, Stevie has strawberry bond hair. She dresses in comfy vintage style of the thirties, forties, but doesn't where dresses except for special occasions. She also wheres a head scarf around her head like Rosie the Riveter.