Well, sometimes Tumblr also has some really cool Maken - Ki crossover fanfiction. People post their works there, and you might be able to find unique crossovers that combine Maken - Ki with other popular series. Just use the search bar and type in 'Maken - Ki crossover fanfiction'. However, the content quality can vary, so you may need to sift through a bit.
One great place to find Maken - Ki crossover fanfiction is on fanfiction.net. There are many talented writers who create interesting crossovers involving Maken - Ki characters. You can search for it using relevant keywords like 'Maken - Ki crossover' and browse through the results to find the ones that suit your taste.
Chapter 525, "Help It Transcend", is the clearest early answer because it turns Bai Lu's situation into a concrete plot event.
Chapter 541, "Life Imprisonment as the Starting Point", is the clearest early answer because it turns Gu Yu's situation into a concrete plot event. Early on, The production team acted quickly, replacing one damaged drone with....
Chapter 604, "Shiguang, originally named Shen Guang", is the clearest early answer because it turns Don's situation into a concrete plot event. It opens with Fortunately, the other person did not recognize him; they just stared...
Chapter 416, "Such a Sensitive Nose, Born in the Year of the Dog?", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event.
Chapter 207, "Keep these thirty points for yourself, I don't need them", is the clearest early answer because it turns Sister's situation into a concrete plot event. The chapter turns that into something concrete by moving from After finishing, Sister-in-law Lan quickly took out the Good...
Chapter 526, "Has Jiang Li Turned Evil?!", is the clearest early answer because it turns Jiang Yan's situation into a concrete plot event.
Chapter 338, "The Adulterer is Far on the Horizon, Yet Close Before the Eyes", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event.
Chapter 328, "Persuading the Old Master", is the clearest early answer because it turns Grandfather's situation into a concrete plot event.
Chapter 510, "The Fake Young Master", is the clearest early answer because it turns Jin Siyue's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Ever since that night's family banquet, Gu Qiang hadn't slept soundly...
Chapter 252, "To This Fanatic Fan, Please Calm Down a Bit", is the clearest early answer because it turns Brother Yan's situation into a concrete plot event. The chapter turns that into something concrete by moving from In fact, Jiang Yan's shirtless appearance this time was entirely...