You can try to force your way through a space occupied by a hostile creature by overrunning it.
As an Action or a Bonus Action, you make a STR (Athletics) check against the hostile creature's STR save DC. You have [[Advantage]] on this check if you are larger than the hostile creature, or [[Disadvantage]] if you are smaller. On a success, you can move through the hostile creature's space once this turn, without considering [[Difficult Terrain]].