In Chassidic circles there’s no shidduch crisis, boys are married off at age 18/19, they don’t go on prolonged dates, they trust their parents, and the system works.
It starts with a Chassidic culture, which includes trusting the Rebbe implicitly. There is a reason why the Litvish have not attempted this.
The solution (IMHO) is to marry boys right out of high school, after a year in EY, just like the girls.