Based on your search query, I would recommend hilink as a suitable EdTech tool. It is a comprehensive platform that offers a variety of features to make online teaching more engaging and efficient.

The AI Lesson Planner is a standout feature that allows you to create comprehensive lesson plans quickly. You simply input a topic, audience, and keywords, and the AI generates a lesson plan for you. This feature also recommends engaging activities to enrich the classroom environment, which can be a great help in keeping students interested and involved.

hilink's Virtual Classroom is another key feature that includes interactive tools such as breakout rooms, whiteboards, and a built-in media player. These tools can be used to create a more interactive and engaging learning environment for your students.

The platform also includes Learning Management Features like a built-in calendar and to-do list, helping you stay organized. It also allows you to send out class reminders in one click, ensuring your students are always up-to-date.

Finally, hilink offers Student Engagement Tools like quizzes and polls to ensure students are actively participating and understanding the material. It also supports group work in a virtual setting, allowing students to "see" each other sitting together at different virtual tables.

The best part is that hilink offers a freemium pricing model. The free version includes access to the AI Lesson Planner and the Virtual Classroom, which should address your needs effectively.