for JEE advanced is it sufficient to do resonance rank booster and career point test series ? if not plz suggest the best way?

If u have studied all the year long and your concepts are clear then now you just practice as many questions u can.You can solve previous year papers and sample papers and study short notes. You can join test series of any good coaching. If u want to join rank booster class then u can but self study is must. You cannot just depend on rank booster classes.
Resonance also provide rank booster books which contain good quality questions and u can try that too.
Good luck for your exams.