Bandcamp is a place where you can release your music as well as merch. It allows you to connect with new fans by recommending you to a someones account. That would be a great thing if you’re just starting out. Although some websites come with monthly fee’s, it looks like band camp is free to sign up. I would recommend getting on more than one of these websites to improve your opportunity to gain a bigger audience. If you feel like your promotion skills are top notch, you could get by with creating your own website, advertising the same songs and merchandise. It is possible.