As the DFS industry has grown, so too have the options for players looking for lineup building help. There are plenty of sites out there which offer advice on building lineups, some of which also offer lineup optimizers. In short, the optimizer aims to fill out your lineup with the best available options based on the salary cap. While they can make for a helpful guide, keep in mind that they are also being used by scores of other players. You’ll want to build in some differentiation as well to help your lineup stand out in tournaments.