According to this Meta Stack Exchange answer, it's okay to ask this here.

What are the differences in hosting a B2B web application on AWS Cloud?

Here are the often listed options:

• AWS Amplify
• AWS Elastic
• AWS Beanstalk
• AWS Cloud9
• AWS EC2
• AWS Lightsail
• other?

The specifics are a JavaScript front-end that will make API calls to AWS API Gateway. Metadata will need to be stored (e.g. in S3 bucket). It will obviously need to be secure and scalable.