I need books with a soukuko vibe

I just finished bungou stray dogs a few days ago AND I'M SO OBSESSED WITH EVERY PART OF THE ANIME. Especially the dynamic between Dazai and Chuuya and now I desperately need a book that's mainly focused on a romantic relationship with that kind of vibe(NOT DOOMED YAOI I CANT DO IT). ANY GENRE, I'm very open. I just need something to fill this hole that they have left on me.