It depends on the locations and available records. Sometimes I start with an individual, enter their data and look for matching census data. Add the census to that profile, and systematically try to add profiles for each of the family members in the census.
It may be a census with the individual and their parents - so I add parents and siblings, or it may be for the individual and their spouse, so I add the listed children in that case. You start with the estimated census birth year, and then go back and search for specific dates for that person.
All of which can be tedious if someone has tons of siblings and or children. But from your watchlist you can usually keep track of who is missing further dates.
ie. John and Mary Hoyt had 10 children entered with est dob/location (nd nothing else. Go back to my watchlist of Hoyt's and see who has only dob year and no other date.