As of now, there are not many mainstream and highly popular Mario visual novel games. The Mario franchise is mainly known for its platformer and racing games. However, in the fan - made community, there might be some interesting Mario visual novel projects that have a dedicated following.
In the commercial gaming world, no, there are no extremely popular 'mario visual novel' games. The Mario brand is strongly associated with action - packed platforming and kart - racing experiences. However, on the internet, especially in fan communities, there could be some hidden gems in the form of Mario visual novels. These are often made by passionate fans who want to explore different aspects of the Mario universe through a more narrative - based medium. But they lack the mass - market exposure that the official Mario games enjoy.