I got this Autel over a year ago and it has been able to do everything I needed including resetting codes on the boxster as well as other cars (Hyundai, BMW, Alfa Romeo). It handles the occasional airbag/seatbelt code as well.
https://www.amazon.com/gp/product/B0925G7QY1/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1