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.
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.
Chapter 71, "Wooden Mannequin, Medicine Decoction Pot, Polishing Stone", is the clearest early answer because the rescue effort creates visible on-page results. A useful checkpoint is the way the scene starts with Xia Hong understood what the people from Da Shi were thinking. and follows through with Consuming 20 units of coal per hour, such crazy upgrade conditions,....
Chapter 135, "The Fearless Mirror Immortal [Three in One]", is the clearest early answer because it turns Redwood Ridge's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Snow Mane could pretend to be dead, and pretend it did well. and follows through with In the end, its limbs finally went limp..
Chapter 57, "Solidified Fire Oil is Used Up", is the clearest early answer because it turns Xia Hong's situation into a concrete plot event. The setup is When the solidified fire oil was taken out of the iron refining..., but the pressure keeps building through Although it appeared solid, a gentle force could liquify it..
Chapter 119, "Running Out of Materials, Archery Contest [Warm Sun Giant's Additional Chapter 2/10]", is the clearest early answer because the buildup finally cashes out in a real clash. Early on, If one can win first place in the competition, it would be a great.... By the end, Smiling, Xia Hong waved his hand, originally not wanting to try, but....
Chapter 118, "Poison Sac, Bow Making [2 in 1]", is the clearest early answer because it turns Shi Qing's situation into a concrete plot event. Early on, This number, although large, is actually not unattainable.. By the end, There should still be a bit more at the mine; I'll first mass-produce....
Chapter 89, "【Seeking First Subscription】Chapter 89: The Limitations of Trap Hunting", is the clearest early answer because it turns Cold Beasts's situation into a concrete plot event. It opens with Two hours later, a Frost Wolf stepped onto an animal trap in the... and closes on I want to see if these Cold Beasts really are endless." Unaware of....
Chapter 108, "Long-tailed Rodent [3-in-1 Mega Chapter]", is the clearest early answer because it turns Xia Chuan's situation into a concrete plot event. The chapter turns that into something concrete by moving from Damn it!" On the other side, Luo Yuan was more direct; after... to Such a hard ground, and yet two rodents could dig through it so....
Chapter 69, "Xia Chuan Awakens", is the clearest early answer because it turns Xia Chuan's situation into a concrete plot event. It opens with Brother, it feels like there's a lot more in my mind now..." Before... and closes on Amid his heartache, he also felt an immense sense of relief..
Chapter 171, "Camp Integration, Territory Rapid Expansion (Part 2)", is the clearest early answer because it turns Great Xia's situation into a concrete plot event. A useful checkpoint is the way the scene starts with The importance of the Hunting Team is self-evident. and follows through with If I truly cannot meet the leader's requirements, feel free to remove....
Chapter 151, "Pioneering, The Growth of Xia Chuan [sorry, late]", is the clearest early answer because it turns Xia Hong's situation into a concrete plot event. It opens with Establishing the Pioneer Department opens a new path for advancement;... and closes on Even if mistakes are made, we need to nurture these people first;....