Coursera https://www.coursera.org/
Udemy https://www.udemy.com/
Khan Academy https://www.khanacademy.org/
Udacity https://www.udacity.com/
edX https://www.edx.org/
For video calls
Zoom https://zoom.us
WhatsApp https://www.whatsapp.com/
Houseparty https://houseparty.com/
Marco Polo https://www.marcopolo.me/
For clearing your mind
Headspace https://www.headspace.com (7d trial)
For learning how to code
Khan Academy https://www.khanacademy.org/
Codecademy https://www.codecademy.com/
The Odin Project https://www.theodinproject.com/
origin - https://www.pipiscrew.com/?p=17964 for-learning-something-new