As an artist, you always want to pick the best blank canvas for your medium. A major determining factor in the absorbency of a canvas includes how it's primed. More primer coats result in greater detail, perfect for oil painting. For acrylics, use a raw background to absorb the paint, allowing you to draw both thick and thin lines.
Additionally, consider whether you a want pre-stretched blank canvas, as it tends to cost more. Get inspired and start painting a masterpiece.