I believe that there already exist many threads like this, but those are quite old. Besides this year  paper will probably cause rush toward geography optional.
Hence I request all stakeholders to contribute to this thread, specially the ones who are undergoing coaching or have gone through, to provide their valuable feedback on which coaching is currently the best
Last year threads concluded Shabir Sir [Vajiram] is good followed by Alok Ranjan Sir? Are they still the leaders? Please comment.