I truly believe it’s No.1 - “Celebrate ALL Masses in a highly reverent manner” that will do it.
In my old diocese, run for decades by one of the most liberal modernist bishops in the country (rainbow masses, dancing girls down the aisle at Mass, a woman leader from one parish in a white robe with an alb-type scarf on the front page of the city newspaper holding a host she “consecrated” in the air), the really devout priests would be sent to remote or unsavory areas while those in good with the bishop and his policies would man the nicest and biggest parishes. One non-nonsense devout priest who had served in a large suburban parish grew in popularity and was promptly displaced to an old inner city parish, in the business district. Because of his devoutness and the highly reverent way he served Mass, people came, even families with young children (even though there was no children’s program) and Mass became a “pilgrimage” to this part of the city (even though a security guard had to be outside to keep folks from being mugged or their cars vandalized) and all the Masses became packed. He offered Daily Mass at 12:10pm, convenient for business people, and held confession for at least an hour before that, and there would be long lines every day - if you didn’t get there early you might not have a chance.
So that’s why I believe it’s no.1.