Oh I'm answering this here since I'm in an inazuma brainrot and they're all I'm thinking about right now. But I do need people to understand that these are just headcanons and they happen to be the first ones I thought about. The duos and trios I'm going to drop may also not be a ship in my eyes, I just think they're dramatically attracted to each other like opposite magnets.
anon is referring to this post
Nosaka Yuuma and Nishikage Seiya
-> I have not watched all of areori so there's nothing to back up my claim here and I still haven't seen their past but the moment I saw that post, this pair is the first one that came to mind. I have nothing to plead my case with and I could very much be wrong but the first thought is these two.
Sakuma Jirou, Fudou Akio, and Kidou Yuuto
-> There's something about these three that made me think that they have become overprotective and so codependent of each other because of what they've been through. I again don't have any evidence for this other than the vibes and it's because that's how I imagine them as adults in a polyamory, really. Yeah, they're all independent and im just delusional.
Zaizen Touko and Urabe Rika
-> I want them go be besties BESTIES. I also want them to get married. I want them together all the time. It would bring me so much joy to see them so close that they're unable to function and be big sad without each other. So anyway, this one is here because it's what I want to happen shfssjshsjafsgsf
Kino Aki, Domon Asuka, and Ichinose Kazuya
-> These three I hold in my heart very dearly. 2nd favorite throuple next to engoukidou. I do think this is seen better for Domon and Ichinose but I think we can really add Aki in the mix here. These three would thread the world for each other in frightening ways and would die if they arent able to talk to each other in a day (not to be dramatic). I just know that Ichinose and Domon would even compete on which phone should call Aki or which one should greet her first or who would buy a better gift for her. They're insane for her, i know it, and she loves them as much if not more. God, I love them so much.
Endou Mamoru, Gouenji Shuuya, and Kidou Yuuto
-> I will not elaborate.
Others that I think shouldn't warrant any explanations either (the go characters mostly not as a ship):
Mark Kruger and Dylan Keith
Hamano Kaiji and Hayami Tsurumasa
Aoyama Shunsuke and Ichino Nanasuke
Matsukaze Tenma and Tsurugi Kyousuke
Shindou Takuto and Kirino Ranmaru
Matsukaze Tenma and Amemiya Taiyou
Matsukaze Tenma and Nishizono Shinsuke
Senguuji Yamato and Gomaki Tetsurou
You know, I don't think I can list them all, I'll stop here
Thank you so much for the ask!!! I enjoyed answering this!