Yeah vedantu guys are doing a great job. Ii think online tuition offers safety, flexibility of time and selection of tutors much better than an offline option.
Another great site providing online tuition is https://sprintlearn.com. New kid on the block, but seems good and more affordable too. You can try out free sessions, select tutors and negotiate for a good monthly deal.
These startups are doing a great service to the society. God bless them