The Small Forward is typically considered a role player in NBA 2K21, with typically one, maybe two main jobs to help the team win.
However, equipped with a good build, Small Forwards can lead a team to victory in any game mode. Thus, here are the best builds to help you dominate the SF spot:
Best Current Gen Small Forward Build: Perimeter Lockdown. A two-way build that can guard 2-4 and shoot from the corners relatively consistently. Here’s a video on how to make it.