ancestry is really the best for the us, get one month international membership to track your us lineage, if you work at it you should be able to find pretty much everything that matters in the us in that month, once you make the bridge of what relatives came from europe back in the day via passenger logs and baptism / birth records from europe, then cancel subscription take the tree info then plug those settler relatives into the netherlands genealogy online site which will take you back to the 15th century unless you run into a line of nobility from which wikipedia will then take that line back to pretty much the beginning of the holy roman empire, it is fun to autism out on when youre bored, i have tracked mine back to 26th great grandparents this way, sometimes if youre searching for something very particular youll have to look up and interpret old censuses yourself because the scans cant process the old cursive correctly quite often
United States