Hey there
Honestly almost no coaching class is free in CA whether online or offline and thus you will have to purchase lectures online for quality lectures. You can watch videos of superprofs, Neeraj arora,CA DILIP BADLANI etc.
Feel free to ask questions
https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.careers360.com/&ved=2ahUKEwjZk7uc3YTlAhVHknAKHUqcCtEQFjAAegQIBRAD&usg=AOvVaw0kXTs63lu0AEzhiIz4mPU8
Good luck
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