You can start by looking on Archive of Our Own (AO3). It has a large collection of fanfics from various fandoms, including Aph Estonia ones. Just use the search bar and type in relevant keywords like 'Aph Estonia' and you'll get a list of available fanfics.
Fanfiction.net is also a good place. There are many writers who post their Aph Estonia fanfics there. However, the search function might be a bit less refined compared to AO3, but with some patience and using different search terms, you can find some really good ones.
Chapter 479, "Apocalypse-level Technology", is the clearest early answer because Alliance finally turns buildup into a real advancement. The chapter gives readers a real answer by opening on It was slightly smaller than the Moon-Class cruiser, but in terms of... and ending on Given a bit more time to develop, the future of the Alliance's fleet....
Chapter 130, "A Lovely Day To Be Alive", is the clearest early answer because it turns Damon's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Damon and Anaya strolled out of the academy's bustling cafeteria,... and follows through with What a lovely day to be alive..
Chapter 150, "Storing People In Luton", is the clearest early answer because it turns Damien's situation into a concrete plot event. The chapter gives readers a real answer by opening on Damien and Fenrir quickly met up with the others who'd escaped from... and ending on If you'd just carried us up like the others…" "You had your chance,"....
Chapter 140, "Demon Infestation Mission I", is the clearest early answer because it turns Damien's situation into a concrete plot event. The setup is Damien stepped over to the counter, his silver eyes locking onto the..., but the pressure keeps building through She stood behind the desk, her ever-present smile widening as he.... Once the chapter lands on Once you've finished, we'll issue a new ID at that rank., the chapter closes with Her eyes landed on a book she'd been reading earlier on.
Chapter 500, ", Alliance 400 Worlds", is the clearest early answer because a shaky connection becomes usable in the plot. A useful checkpoint is the way the scene starts with The Alliance Government did even better than Gu Hang had imagined. and follows through with The Mingyang Sect almost entirely controlled the Steel Fire Dragon....
Chapter 455, ", Firebath Nova", is the clearest early answer because it turns United Fleet's situation into a concrete plot event. Early on, Wraith Spire had started to move in space, under the collective.... By the end, Then, he would use the power of thunder to thoroughly cleanse the....
Chapter 493, ", The Enemy is in Terra!", is the clearest early answer because it turns Gu Hang's situation into a concrete plot event. The chapter gives readers a real answer by opening on One banquet after another, one meeting after another, one social... and ending on In his words: "I've risen through the ranks at breakneck speed in....
Chapter 428, ", I am the Dominant Bishop!", is the clearest early answer because it turns Flying Wing Star's situation into a concrete plot event. The chapter turns that into something concrete by moving from By then, the small faction that had been established would become a... to We're all part of the same sect, so go ahead and establish your....
Chapter 27, "Burning Through Essence", is the clearest early answer because it turns Magic Essence's situation into a concrete plot event. It opens with Damien thought for a moment before coming up with a feasible solution... and closes on Only Damien remained standing upright and this was because of the.... The key payoff is that the chapter closes with However, the only thing that mattered to Damien was obtaining the Monstrous Wolf.
Chapter 167, "Interruptions At The Ball II", is the clearest early answer because it turns King Aythore's situation into a concrete plot event. The setup is The king placed a hand on the general's shoulder., but the pressure keeps building through Double the patrols along our borders.. Once the chapter lands on Her mind raced with the implications of his words., the chapter closes with "The Silver Flame," she said with a grin.