What do you use instead of standardized scores that are less easily gameable? Extra-curriculars are easier to game and require far more money and time. Essays

What do you use instead of standardized scores that are less easily gameable? Extra-curriculars are easier to game and require far more money and time. Essays are much more effectively gamed. Same with grades. Also if you don't have a safe place to study that's awful. But that's going to affect your grades and how much you learned the previous 12 years much more.