Well, Tumblr can be a great place too. There are many fanfic writers who post snippets or links to their full stories on their Tumblr blogs. You might have to do a bit of searching using relevant tags like #ClintBarton #BuckyBarnes #Fanfic. Also, some dedicated Marvel fan communities on Reddit might have recommendations or even have fanfics shared within the community.
You can start by looking on fanfiction websites like Archive of Our Own (AO3). There are tons of Clint Barton and Bucky Barnes fanfics there. Just use the search function and type in their names. Another option is FanFiction.net, which also has a large collection of fan-written stories about various characters, including them.
Some Discord servers dedicated to Marvel fandom often have channels for fanfiction. Members share their own works or recommend ones they've read. It's a more interactive way to find good Clint Barton and Bucky Barnes fanfics. You can join a few such servers and start exploring the fanfic channels.
Chapter 443, ", the mobilization ratio must be higher!", is the clearest early answer because it turns Green Skin's situation into a concrete plot event. It opens with Inside the Temir Star System, on the flagship 'Giantsfield' of the... and closes on The earliest had been conquered for over fifty years; the most.... The key payoff is that the chapter closes with The sudden advance of the human military took him by surprise.
Chapter 391, ", Mr. Gu", is the clearest early answer because it turns Star Domain Government's situation into a concrete plot event. Early on, All this being implemented within the Dragonhawk Star Domain meant.... By the end, Although someone had flattered him by saying his efficiency was....
Chapter 373, ", Alpha-class Psychic", is the clearest early answer because it turns Alpha-class Psychic's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Korolya Battle Zone transformation, a reduction of 4 billion. and follows through with ———— 6k chapter 4k as regular updates, 2k to pay off debt..
Chapter 779, "a major turning point", is the clearest early answer because it turns Jindi Star's situation into a concrete plot event. Early on, What do you mean?" "Upper Plateau Star is gone, the Mechanical Ark of.... By the end, Actually, there was no need to force it..
Chapter 450, ", Death of the Ashen Dead", is the clearest early answer because the violence around Mother Planet becomes final instead of hypothetical. The setup is He seemed to be back in the old days., but the pressure keeps building through In the past, he had more than once sparred with Priest Rizzo in the....
Chapter 495, ", Deadly Blood Fight", is the clearest early answer because the buildup finally cashes out in a real clash. The setup is This isn't holding back or deliberately not using the most familiar..., but the pressure keeps building through Because the opponent Kalduce isn't wearing Terminator Armor, just a....
Chapter 466, ", I've had enough already!", is the clearest early answer because it turns Green Skin Orcs's situation into a concrete plot event. The chapter gives readers a real answer by opening on Or rather, the war had never actually ended. and ending on The United Fleet was slightly larger than that of the Green Skins,....
Chapter 407, ", Ashen Dead Squad", is the clearest early answer because the violence around Battle Group becomes final instead of hypothetical. The chapter turns that into something concrete by moving from This place isn't bad." Nides, or as he was called Sydney Bravens,... to They had betrayed, yes, in that battle back then, they had the chance....
Chapter 450, ", The Death of the Ashen Dead", is the clearest early answer because the violence around Gu Hang becomes final instead of hypothetical. Early on, The Chief Wizard of the Ashen Dead Squad was indeed quite formidable.. By the end, However, their combat power was too different; involving them in the....
Chapter 667, ", must maintain respect for Gu Hang", is the clearest early answer because it turns Gu Hang's situation into a concrete plot event. It opens with This is one of the nine planets in the Tianma Star Sector, and it... and closes on Even Gu Hang thought his appetite might be a bit too big.. The key payoff is that the chapter closes with Eventually, he let out a long sigh, "Don't be in a hurry, Pei Desi, don't be in a hurry...