Moving Around Other Creatures
During your move, you can pass through the space of an ally, a creature that has the Incapacitated condition, a Tiny creature, or a creature that is two sizes larger or smaller than you.
Another creature's space is Difficult for you unless that creature is Tiny or your ally.
You can't willingly end a move in a space occupied by another creature. If you somehow end a turn in a space with another creature, you have the Prone condition unless you are Tiny or are of a larger size than the other creature.