This is a 4v2 game played to three goals. Put your players into 3 sets of partners. Create a team of 4 with two sets of partners they will play to one central goal whilst the team with two players plays to two wide goals.
Keep switching the team that has the overload every time the team of 4 scores. Vary which pair of players is on the overloaded team so everyone has a chance to be on the team with the extra players.