S3 implementation

Hi, first i wanna apologize for my english. It’s not my native tongue. I am creating a website where users can upload and download files. Mostly videos, so we are talking big files. I was looking at amazon s3 for the storage but it seems to be a little to expensive for me at the moment. What do you guys recommend? I know there are other S3 alternatives for storage that are cheaper but I think they are not as easy to implement on wordpress. Any help will be greatly appreciated. Thanks.