Are workout "pumps" healthy or should I stay away? What are some natural pumps? Heard that dilatin my blood vessels will help me or is that broscience

No workout pumps. There no such thing as "work-out" pumps. When working out, I recommend a strong, stable, athletic shoes to control the rearfoot motion as well as absorb the shock of the heel strike. I personally recommend New Balance and Brooks, but there are many good workout shoes on the market. The type of athletic shoes are also important. Running shoes for running and walking, and court shoes for tennis.