how to automatically fetch the ami for any os in the terraform in aws code code example

Example: aws instance creation using terraform

resource "aws_instance" "myec2" {
  ami                    = "<AMI-ID>"
  instance_type          = "t2.micro"
  vpc_security_group_ids = ["SECURITY-GROUP-ID"]
  key_name               = "<KEY-NAME>"
  subnet_id              = "<SUBNET ID>"
  iam_instance_profile = "<ROLE NAME>"

  tags = {
    Name = "<PUT THE NAME>"
  }
}