Well, I am addicted. The beautiful art, diverse plotlines, and the exploration of emotions in BL manga make it hard for me to resist. Also, it offers a unique perspective on relationships that I find fascinating.
There are several options. Some dedicated manga reading apps like Manga Rock or ComiXology could have what you're looking for. Also, some websites specifically focused on BL content might have a good selection.
The 'unintentional' aspect makes it special. In many love stories, the characters actively pursue love, but here it might be more of a gradual discovery of feelings that they didn't initially expect. This gives a more natural and unexpected feel to the relationship development.
You could look on platforms such as Comico or Lezhin Comics. They often have a decent selection of BL manga. Just be aware that some content might be restricted based on your region.
You could try looking on some fan-run forums or blogs dedicated to BL manga. But keep in mind that not all of the content might be authorized and could have copyright issues.