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.
Honestly, I don't have a definite answer for you. It's not recommended to look for free reading sources that might violate copyright laws. It's better to support the creators by using legal paid platforms.
First, make sure you have a stable internet connection. Then, download the Bl Kakaopage app or visit their website. Log in or create an account if needed. Once inside, navigate to the manhwa section and select the one you want to read. Some may require a subscription or payment to access.
I'm not sure if there are many legal and free options. Some websites might offer limited free content, but it's often best to support the creators by using paid subscription services.