For a thrillar show you can watch, "Attack on Titans," I won't give away much but I think the title is says enough.
For a romance show, you can watch "Anohana," this show is a heartwarming show that is rated to be a tear jerker.
For a sports show, you can watch "Haikyuu," This show captures the life a skilled volleyball player who is starting on a new team and a high school student.