One great male OC bastard fanfiction is 'The Bastard of Winterfell's Rise'. It follows an original character who is a bastard in the North. The story is engaging as it shows his struggle to gain acceptance in a society that looks down on bastards. He uses his wits and combat skills to make a name for himself.
There's also 'A Bastard's Tale in Westeros'. This fanfic focuses on a male OC bastard who has a mysterious past. He gets involved in the power struggles between the great houses. The author does a great job of integrating the character into the existing Game of Thrones world, with detailed descriptions of the politics and battles.
Another interesting one is 'The Bastard's Redemption'. The male OC bastard starts off as an outcast but slowly builds alliances. He has to deal with the prejudices against him while also trying to uncover secrets about his true parentage. The character development in this fanfic is really well - done.
Chapter 327, "Beast Tide Battle, Wolf King and the Hidden Move, White Dew Gu’s Dead End (Part 5)", is the clearest early answer because the violence around Wolf King becomes final instead of hypothetical. A useful checkpoint is the way the scene starts with Because the Iron Arrow flew above the Cold Ruins Tripod, a fierce... and follows through with The thick fog area to the south was already thinning considerably,....
Chapter 315, "New Policies for Long Mountain, Cold Apple Tree and the Silver Mine (Part 3)", is the clearest early answer because it turns Li Xuandu's situation into a concrete plot event. A useful checkpoint is the way the scene starts with At present, even the Cloud Dragon Army that cannot appear during the... and follows through with Given that her ages with the eldest and second elder were over thirty....
Chapter 321, "Purging the Yanglu Realm, Long Wu Army Soon to Be Formed (Part 3)", is the clearest early answer because Wang Yuan finally turns buildup into a real advancement. It opens with In the past half month, we have mobilized only three times in total,... and closes on Xia Chuan continued looking towards the direction of Yangyuan Peak in....
Chapter 98, "Jiang Li is So Daring!", is the clearest early answer because it turns Lai Fu's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Jiang Li listened to the end and didn't have much of a reaction, only...
Chapter 328, "Unexplainable Unease, Jade Dew Stone, Li Xuanling's Panic (Part 4)", is the clearest early answer because it turns Cold Beast's situation into a concrete plot event. A useful checkpoint is the way the scene starts with I don't have the ability to control the Deceitful Monster. and follows through with It was all an act, the White Dew Gu still had some strength left..."....
Chapter 332, "Chen Ying's New Discovery, Xia Yuning, Good News Abound", is the clearest early answer because it turns Chen Shang's situation into a concrete plot event. It opens with Snowy night, two kilometers north of Xia City, at the mountain wall. and closes on Is the captain suggesting that the reason there was a Rodent Tide.... The key payoff is that the chapter exposes hidden motives around Chen Shang, so readers can finally see how the conspiracy layer of the plot is actually moving.
Chapter 334, "Hanqiong's Seven Divisions, Moao Mountain, Beishuo Revisited 5", is the clearest early answer because it turns Beishuo Town's situation into a concrete plot event. The setup is According to Fan Kui, let's first explore northward together to see..., but the pressure keeps building through He first sensed the surrounding area and noticed that the strength of....
Chapter 332, "Chen Ying's New Discovery, Xia Yuning, Good News Abounds", is the clearest early answer because it turns Xia Hong's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Qiu Peng congratulates the Minister on the birth of a noble... and follows through with Nong Ying, Qiu Ru, come clear these liquids from the room quickly....
Chapter 331, "Zhu Shun, Huang Tianxi, the Third Cold Yuan Banquet of Great Xia, and Xia Yuzong", is the clearest early answer because it turns Cold Yuan's situation into a concrete plot event. The chapter turns that into something concrete by moving from Inner City's main street, Zhu Shun led his wife Huang Yuniang and... to But later, as the Camp Supply Department sent over the ceremonial....
Chapter 163, "She Actually Gave President Shang a Zero?!", is the clearest early answer because it turns Mr's situation into a concrete plot event. The chapter turns that into something concrete by moving from Su Yinwan entered a small room, guided by a staff member.