Accelerate

Choose up to three willing creatures within range, which can include you. For the duration of the spell, each target's walking speed is doubled. Each target can also use a bonus action on each of its turns to take the Dash action, and it has advantage on Dexterity saving throws.

At higher levels: when you cast this spell using a spell  slot of 4th level or higher,  you can affect one additional creature for each slot level above 3rd.