IF you want to prepare for IIT JEE in a long terms course then its better to get admission in Resonance rather than IGNITE, the reasons are:

• Resonance have better faculty members.
• The competition in Resonance will be very good through which you can realize your place
• Study material of Resonance is better and well organized
• The practice sets or mock test you will be getting will be of better standards and this will assure your confidence as well as your upliftment in the competition.

For IIT JEE preparation strategy you may visit the link below:

https://engineering.careers360.com/articles/iit-jee-preparation-strategy

I hope this answer helps. All the very best for your future endeavors!