You might like 'Blame!' and 'Gantz' if you're into the style of Knights of Sidonia. Both have dystopian settings and intense action sequences.
For similar manga series, consider 'Appleseed' and 'Ghost in the Shell'. They have similar themes of technology, future worlds, and complex characters like Knights of Sidonia.
Chapter 338, "Rapid Progress, Martial Arts Skills, Dual Advance Eastward, Dormancy Period", is the clearest early answer because Beishuo Town finally turns buildup into a real advancement. Early on, Lu Yang poured out everything he knew in one breath.. By the end, If we continue exploring east along the Xing River North Bank,....
Chapter 339, "The Changes of Li Hu and Yang Zhong, the Hou Family's Opportunity, Advice (Part 3)", is the clearest early answer because it turns Zhaoyuan Squad's situation into a concrete plot event. The setup is Speaking of this, Li Hu paused slightly, his pupils revealing a look..., but the pressure keeps building through Even if we trained to death, we might not compare." Yang Zhong's....
Chapter 351, "Lu Yang’s Plan, Upheaval in Xia City, Sumeru Nightmare, the Prince’s Golden Words", is the clearest early answer because it pushes East Ridge into a new phase or setting. The setup is Only after entering the main building can one truly be considered an..., but the pressure keeps building through No wonder there's a saying circulating inside East Ridge Base: just....
Chapter 315, "The Strange Cold Apple Tree and the Seized Silver Mine", is the clearest early answer because it turns Li Xuanling's situation into a concrete plot event. A useful checkpoint is the way the scene starts with I heard from Hou Hu that out of the two Cold Apple Trees, one was... and follows through with The Cold Apple Tree's root and stem are too thin, and their extension....
Chapter 28, "Beaten Up Again", is the clearest early answer because it turns Lin Man Ru's situation into a concrete plot event. It opens with The next evening, Jiang Yan drove home seething with rage. and closes on Lili then kicked his knee hard..
Chapter 131, "This Lady is Here to Travel", is the clearest early answer because it pushes Jiang Li into a new phase or setting.
Chapter 145, "Director Sun, You Haven't Paid for the Meal Yet", is the clearest early answer because it turns Director Sun's situation into a concrete plot event. It opens with Chixia Village was located in a remote area with a backward economy,...
Chapter 345, "Audition: She Couldn't Have Gotten in Through Backdoor Connections, Could She?", is the clearest early answer because it turns Have Gotten's situation into a concrete plot event.
Chapter 337, "Over Two Months Pregnant", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event. A useful checkpoint is the way the scene starts with He Hui's eyes widened with shock. and follows through with Tang Jinyu, what do you mean?!.