if we're talking bl manga i really love & recommend asada nemui's work! specifically sleeping dead ^^ stigmata by takahashi hidebu is another good one too imo. do heed the tags though as theyre both adult 🙇‍♀️

As for non-canon... kai & aichi from cardfight vanguard are probably one of my favorite ships ever? its kind of embarrassing how much of an impact they had on my taste LOL