I dont think you should be concern on what others wanna read. but what you wanna write.
lets say a lot of people wanna read a horror. but you dont like horror. but you dont wanna write a horror. but you do because it is popular. then your heart and mind wont be in it. you will end up properly hateing your own story
then you wont like the story.
You can not just sit down and say I wanna write a story there is a horror. that is not a story. it is not even an idea.
You need to come up with an idea. a plot . a story.
most people just wanna read a good story. it wont be good if you are more concern on what other people think. dont write for others but yourself. its your story. it shall make you happy to write. if not dont write,