Four ALCS Game Sevens and two rings in six years -- if you were a kid rooting for the Sox in that era, nothing will probably ever top it.
I know a kid who became a Red Sox TV fan at age 6, attended his first Fenway game the next summer, and was a total diehard by age 8. The years were 2016, 2017, 2018: first, first, first/best ever.