Some Reddit communities dedicated to Batman or fanfiction might also be a good source. For example, r/Batman or r/FanFiction might have users sharing or discussing 'batman jigsaw fanfiction'. You can ask for recommendations in these communities or search through their archives for relevant posts.
Another place to check is FanFiction.net. It has been around for a long time and has a vast number of fanfiction works. Just search for 'batman jigsaw' in the search box and browse through the results. However, be aware that the quality can vary widely, so you may need to read a few snippets to find the really good ones.
Chapter 160, "The Night Has Fallen, It's Time", is the clearest early answer because it turns Xia Chuan's situation into a concrete plot event. Early on, No wonder, no wonder it's been so long, and no Cold Beasts have.... By the end, Bang..." The wooden house's east wall reverberated with another loud....
Chapter 114, "New House, New Rules, New Starting Point [Four-in-One Mega Chapter]", is the clearest early answer because it turns Xia Hong's situation into a concrete plot event. The chapter gives readers a real answer by opening on Leader, this way..." Mu Dong gestured invitingly, leading Xia Hong... and ending on Eight more ordinary ones were placed on both east and west sides,....
Chapter 121, "Ready for Everything, Time to Take Action [Three in One]", is the clearest early answer because it turns Xia Hong's situation into a concrete plot event. It opens with After Xia Hong finished speaking, he gestured for Xia Chuan to rest... and closes on The front row was all holding longbows, carrying arrow quivers..
Chapter 176, "Resistance and Reason", is the clearest early answer because it turns Shi Ping's situation into a concrete plot event. Early on, Thinking about his experience at Xiao He Camp, Xia Chuan could.... By the end, Next time, if he goes to the usual place, and they don't come, where....
Chapter 182, "Red Wood, Eye of Truth, Three Joys Arrive at the Door", is the clearest early answer because the hidden truth stops feeling like mere subtext. The chapter gives readers a real answer by opening on On the snowy ground, a black-clad figure slowly walked towards the... and ending on All three broadswords hit Xia Hong accurately; Meng Yuan aimed for....
Chapter 180, "Exchange Meeting, Murder, Great Xia Gospel", is the clearest early answer because it turns Exchange Meeting's situation into a concrete plot event. A useful checkpoint is the way the scene starts with First Year of the Great Xia, April 3rd On the northern slope of the... and follows through with Though Xiao He Camp's strength isn't weak with over twenty....
Chapter 119, "Materials Exhausted, Archery Competition 【Warm Sun Giant Adds 2/10】", is the clearest early answer because the buildup finally cashes out in a real clash. The chapter gives readers a real answer by opening on Ten days later, inside the Blacksmith Room. and ending on The two Teng Jiao yielded two venom sacs, over forty pounds of Teng....
Chapter 203, "Shock, Prisoner Rules, and What Constitutes Guilt? (Part 2)", is the clearest early answer because it turns Xu Ning's situation into a concrete plot event. The chapter gives readers a real answer by opening on 5,321 people; 124 captives from the Earth-digging Realm, 821 from the... and ending on Then I'm not letting go, wasn't planning to anyway..
Chapter 130, "The New Deceitful Monster", is the clearest early answer because it turns Logging Team's situation into a concrete plot event. The chapter turns that into something concrete by moving from That scream was so shrill it startled many people outside the cabin. to According to He Meng's style, the Mirror Immortal Camp will likely.... What makes it stick is that the chapter closes with "To counter soldiers with generals, water with soil.
Chapter 183, "Population Explosion, Valley Planning", is the clearest early answer because it turns Great Xia's situation into a concrete plot event. It opens with With the lessons of the past, Xia Chuan doesn't dare to be careless... and closes on From the aspect of deterring deceitful monsters, Great Xia indeed has.... The key payoff is that the chapter closes with "Additionally, according to what you said, my lord, everyone's registration has been meticulously categorized into booklets.