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.
One of the great ones for beginners is 'Doki Doki Literature Club'. It has an engaging story and simple gameplay mechanics that are easy to pick up. It also has a unique art style that draws players in.
If you're into horror, 'Corpse Party' is a notable visual novel. It creates a really spooky atmosphere with its detailed descriptions and disturbing events. The choices you make in the game can lead to different and often terrifying outcomes, making it a thrilling experience for horror fans.
Yes, mangas can be considered graphic novels. They share many characteristics such as being a combination of text and illustrations to tell a story. Manga typically has its own unique art styles and narrative structures, but like graphic novels, it uses sequential art to convey a plot, develop characters, and create a fictional world.