You can start by looking on Archive of Our Own (AO3). It has a large collection of fanfictions, including many for Legend of Korra male SI. Just use the search bar and type in relevant keywords like 'Legend of Korra' and'male SI' to find what you're looking for.
Chapter 291, "To Hell with Sister Complex!", is the clearest early answer because it turns Jiang Yan's situation into a concrete plot event. The chapter turns that into something concrete by moving from Early in the morning, Jiang Li's hospital room door was knocked.
Chapter 254, "Madwoman! She is definitely a madwoman!", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event. It opens with Just when everyone thought that Jiang Yan wouldn't last long and...
Chapter 344, "Actually has one million fans?!", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event. It opens with Just as he was about to slip into sweet slumber and catch up on some...
Chapter 360, "There's No Shame in Wearing a Dress Designed by Your Mother", is the clearest early answer because it turns Mr's situation into a concrete plot event. The chapter gives readers a real answer by opening on Jiang Li showed no fluctuations in emotion and remained unperturbed...
Chapter 388, "All the Rich People in Jing City Are in Jiang Li's Live Room", is the clearest early answer because it pushes Gu Yu into a new phase or setting. It opens with what, what do you plan to do?" Gu Yu's false identity was never meant...
Chapter 140, "Did Jiang Li Finally Crash?", is the clearest early answer because it turns Shu Yan's situation into a concrete plot event. Early on, In the evening, the setting sun was like blood, dyeing the entire.... By the end, I was just joking, just joking." Seeing that Wen Jiaojiao had no....
Chapter 371, "Oh, Isn't This an Old Acquaintance?", is the clearest early answer because it turns Jin Siyue's situation into a concrete plot event. The chapter gives readers a real answer by opening on #He Yun Thanks Jiang Li# #He Yun Bows# #LiHe CP# The interview wasn't...
Chapter 244, "Come, Let Brother Give You a Kiss", is the clearest early answer because it turns Jiang Yan's situation into a concrete plot event. The chapter turns that into something concrete by moving from LOL, Director Sun can't seriously think his sappy quotes are working,...
Chapter 571, "Do You Know What Kind of Doctor is Standing in Front of You?", is the clearest early answer because the rescue effort creates visible on-page results. The chapter turns that into something concrete by moving from You, you actually know about astronomy?" Jiang Yan lifted his chin,...
Chapter 340, "Holy Heart Hospital", is the clearest early answer because it turns Mom's situation into a concrete plot event. It opens with Wen," Lin Manru said quickly, her face full of gratitude. and closes on But now, she could fully trust her daughter..