Projections determine how your data will display and visually prioritize your view of the world. It's important to pick a projection that complements your area of geographic focus
For North American area maps our cartographer recommends the "Albers Equal Area Conic" projection, to show your map with equal area representations of Canada or the US, you can eliminate those queries if you're not interested in a new projection, but I included them in any case.
Here's an example of the SQL and resulting map pairings for multiple projections, search through the examples to find the one that suits you.