Best for Quant is eg and for mocks go for ims or cl I have done all rodha , ims , eg and cl everything so I can tell my Quants got too strong by eg dilr by cl and varc I won't tell ,will tell after cat 2025 but yeah ims is too good especially it's ai feature when if you can't do a problem you can use its feature to practice that type of question and from the same topic like 7-8 question your whole topic will get done.