I'm curious about the product composition that fits us

Hello! Please understand that I am not good at English

We use bitbucket cloud and AWS environment.

I would like to add SAST inspection to the development process this time.

What sonar products are suitable for our environment?
(Is it sonarqube? Is it sonarcloud?)

Both SonarQube and SonarCloud support Bitbucket Cloud and SAST (for SonarQube, starting in Developer Edition and higher). I would suggest getting in touch to discuss what option is best for your needs.