I use AWS S3, which I put behind a Cloudfront distribution. It's quick to set up, and there are no servers to keep up to date and patched. You also get free SSL for your Cloudfront distribution via AWS certificate manager. For stuff like Contact Us forms, I use AWS Lambda to post the data into my company's CMS. We've had this setup for about a year now and it works quite well.
The cost is almost nothing but we don't have a high traffic website. If you started getting billions of hits from expensive Cloudfront regions such as Australia or India, you might consider something else.
The cost is almost nothing but we don't have a high traffic website. If you started getting billions of hits from expensive Cloudfront regions such as Australia or India, you might consider something else.