The intensity of the emotions. In BL novels like this, the love is often expressed in a very raw and passionate way. The characters might be 'idiots' in the sense that they struggle with their feelings at first, which makes the story more relatable.
There are also some BL - focused websites and forums where fans share and discuss their favorite BL stories. You can join these communities to get recommendations and sometimes direct links to read the stories. However, be careful about the legality and safety of the sources on such less - regulated platforms.
There are several dedicated BL manga websites. For example, Mangago and Kissmanga have a decent selection. But be careful as some of these sites might not be legal or safe.
Some libraries might have digital collections of BL manhwa. Also, you could check out social media groups or forums dedicated to BL manga, where people often share recommendations and links to where you can read them. Just be cautious and follow the rules and regulations of the platforms.