Read a book. Get a basic knowledge of the most popular grape varieties and search yourself. Noone can promise the wine called good will actually taste good to you.
What I used to do was buying 5-6 bottles, same colour different grape and try them/compare. Hopefully you will start to find connection between grape variety and your preference. But yeah, drink drink drink
Up until you dont marry ultra tannic wine with bitter food for example, you should have fun.