Tachiyomi could be the one for you. It's customizable and supports multiple sources for manga. However, keep in mind that the availability of apps might vary depending on your region.
You can try using dedicated manga apps available on the Android app store. Some popular ones are Manga Rock and Tachiyomi. Just search for them and follow the download instructions.
One of the great Android visual novels is 'Doki Doki Literature Club'. It has an engaging story with interesting characters and unique plot twists. The art style is also very appealing, which draws players into the game's world.
The game 'Oxenfree' is also notable. It's a supernatural adventure game. You play as Alex, a teenager who takes her friends to an old military island for a party. Strange things start to happen and the choices you make during conversations affect the story. It has a unique art style and a very engaging, branching storyline that keeps you hooked from start to finish.