We have two learning management systems, Canvas and Google Classroom. Use either one as little or as much as you want. Remember, that both Canvas and Google Classroom is utilized by students and is typically not used to communicate with parents.
Canvas is a complete learning management system. Your class rosters will be automatically uploaded to Canvas and you will not have to make courses or have to enroll your students into your Canvas course. All of that is done automatically by the district. There are several videos attached that will show you how to use Canvas in conjunction with your class.
Google Classroom is another learning management system that is available to you. Compared to Canvas, you will have to make courses and also you will have to enroll your students into Google Classroom. There are several videos attached that will show you how to use Google Classroom in conjunction with your class.