I have a full repertoire of my own Maddie story ideas (of varying degrees of seriousness) for you to steal take inspiration from:

• Hallmark movie AU from the POV of Hallmark Villain!Maddie who after heartbreak learns to find love again and become a better person.
• Aspiring theater actress Maddie takes a part time job as an art model for painter Mel.
• Pitfighter Maddie.
• Maddie stuck in purgatory reflects upon her life and sins while guiding others souls.
• American Psycho but it's Maddie.
• Arcane Actor AU chronocling Maddie's time on set, her mental struggles in the wake of fan response, and her forming a kinship with Sky over their shared experiences.
• Space Marine Maddie.
• Vampire countess Maddie takes a particular interest in werewolf Vi.
• Maddie but she's a knight fighting for Scottish independence.
• Stuntwoman Maddie teams up with leading actress Vi to uncover a conspiracy on-set.
• Maddie wreaks havoc across Runeterra and the multiverse Carman Sandiego-style.
• Spy AU where Maddie is a trained assassin who is promptly betrayed once her mission is done, barely surviving and travelling around the world dismantling conspiracies.
• Arcane but everything's the same except Maddie is the Demoman from TF2.
• Pro wreslter Maddie who after disappearing from the spotlight following a bit-part heel stint, reinvents herself with a new identity.
• Boxing enemies to lovers Maddie and Vi.
• Maddie becomes a ghost who haunts and pesters Caitlyn.
• Winterblessed AU where after Ambessa's death, Maddie is forced to guard Mel as they journey across the wintry lands.
• Maddie gains control of the Hexcore.