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.
Yaoi BL manga usually features romantic and intimate relationships between male characters. The art style is often detailed and the storylines can be quite emotional.
Well, Korean BL manga typically combines elements of romance, drama, and sometimes fantasy. The art is often detailed and the plots can be quite complex and emotionally charged. Also, it often explores various themes related to love and identity.