Suggest Infrastructure as Code scanning tool?

#Hashicorp Team,

Would be grateful if someone can suggest the infrastructural code scanning/analysis tool. If possible, please suggest on the basis of few or any of these parameters:

  1. Maximum usage by the industry so that it would be easier to locate answers on portals like github, stackoverflow, slack, gitter etc.
  2. Possible integration within CI/CD pipelines using github actions
  3. If possible, accept custom rules/plugins as well
  4. Not necessary, but an advantage if there is an enterprise version available along with open source so that in the future we have a possibility to onboard for support from the company.

Would really appreciate your support. Thank you.