I recommend Quizizz. It's an interactive learning platform that enables teachers to create gamified quizzes and lessons. It supports both teacher-paced and student-paced learning, provides access to millions of pre-made quizzes, and generates detailed reports on student performance.

Key features include:

• Quiz Creation: Create quizzes and lessons that can be paced according to your or students' preferences.
• AI-Enabled Quiz Generator: Automatically generates quizzes from existing documents or text.
• Gamification: Incorporates elements like leaderboards and instant feedback to enhance student engagement.
• Collaboration: Share your quizzes with other instructors or invite them to be collaborators.

This tool can be used for formative assessments, interactive learning, remote learning, collaborative learning, and efficient content creation. It offers a free basic version, but some advanced features and integrations require a paid plan.