If you’re considering a professional printer, I recommend Prints of Love. My shop has partnered with them to offer fast, high-quality yet affordable printing. Plus free 2-3 day U.S. shipping and free envelopes! Check them out at: https://printsoflove.com/ref/verveline/
Also, you can use your home printer or print at any local or online print store such as Staples, Office Depot, Kinkos, Costco, etc.
However, if you decide to print on your own we recommend using quality paper, as it may impact the quality of the picture. Alternatively, you can print your design on watercolor paper to give it a hand-drawn look.