An unarmed strike is a nonweapon

Shield master vs Flurry of Blows

Unarmed Strike and Two-weapon fighting

Nonmagical unarmed strike – D&D Errata

Dash twice

Sage Advice:
Rogue Cunning Action is described in Player’s Handbook p.96
Monk Step of the Wind isin PHB p.78
Bonus Action PHB p.189
Dash PHB p.192