How can I set up HTTPS on my AWS EC2 instance?

Just make sure you're clear on what you're running on your instance. If it's a typical application, here are some options:
1. **ALB + ACM:** Set this up to use a free, auto-renewing TLS certificate from ACM. It terminates TLS at the ALB and forwards requests to your EC2 instance.
2. **NGINX + Let’s Encrypt:** Get NGINX running on EC2 to handle HTTPS directly, using Let’s Encrypt for your TLS cert.
3. **Let’s Encrypt directly:** If your app can do it, set it up to handle TLS itself, but be cautious with the config.

The simplest solution really is to go with an ALB using ACM for your certificates. But just make sure to consider what your needs are (like cost or a specific type of SSL certificate).

If you're running Apache on Amazon Linux 2, there's a handy tutorial available [here](https://docs.aws.amazon.com/linux/al2/ug/SSL-on-amazon-linux-2.html) that guides you through the setup. This might simplify things for you!

If you prefer to own the setup, you can place an Application Load Balancer in front of your EC2 instance. This way, you can obtain a free TLS certificate through AWS Certificate Manager (ACM) and manage HTTPS traffic without cluttering your EC2 instance's configuration. Alternatively, you could set up NGINX on your EC2 instance to handle HTTPS requests and use Let’s Encrypt for the certificate.

One of the easiest options is to use Cloudflare. It’s free, fast, and optimized for this kind of setup. Alternatively, you could use AWS services like ACM with an Application Load Balancer (ALB) or even run Let's Encrypt directly on your EC2 instance to get a TLS certificate. Just steer clear of self-signed certificates if you want to avoid warnings for your users!