for Quant and Verbal, the
Manhattan Prep books and the official GMAT Focus practice sets are very close to OG (Official Guide) style. For Quant specifically,
Target Test Prep (TTP) is also excellent for building fundamentals, though it's slightly more detailed than OG questions. For Verbal, Powerscore's CR Bible (for Critical Reasoning) and LSAT Logical Reasoning sections (for tough CR practice) are quite close. For Data Insights (DI), the official GMAT Focus practice questions are the best match, as third-party DI material still isn’t fully aligned with the new format yet. Stick closely to official resources whenever possible!