Hi

The problem with the free  platforms mentioned by you is that you may not get a video lecture for each topic that you want also when it comes to preparation for entrance examinations like JEE, one of the most important thing is solving MCQs and numerical and you often get stuck in solving them but then these free things won't help you as they don't provide doubt solving feature which is a major drawback.

So, if you want quality content online then you'll have to pay as we all know that good things always come paid and when it comes to the best online course then we have the best course for you ,you can go for  careers360's JEE knockout program to prepare well for your JEE examination,and don't worry it is available at a very affordable price, the link for which is provided below

https://learn.careers360.com/knockout-jee

You will get following benefits in JEE knockout program:-

*   video E- lectures  by expert faculties to make your concepts crystal clear.

*AI based :- AI creates a personalised learning path for you depending on  your learning/ grasping  abilities or your grasping speed .

*   24 X7 doubt clearing   ,to solve all your doubts

*   Smart study materials :-   it covers 5000 + concepts , you also get 1200+ Boosters i.e most asked concepts, 1000+ Kadha i.e most difficult concepts, concepts flash cards and popular books along with their solution etc

* You also get   2000 + concepts wise   and 2000+ chapter-wise questions for better practice.

*   Faculty support   :- You can get all your doubts solved with the help of live chat with the subject experts and also Q & A by experts.

*   Adaptive time table

*   Previous 18 year jee mains solved   question papers

*   Mock test series :   - You can give chapter-wise test, subject-wise test and Complete syllabus mock tests too.

*   Performance analysis   i. e you get analysis of your strengths,weaknesses, and current level of preparation

*   Competitive Analysis   i. e you get your rank/ position among your peers

And many more benefits

Thankyou