Terracongis
Hi! Based on your needs—20GB to 50GB storage, 10GB to 20GB bandwidth, and a West Coast server I’d recommend checking out Dedihoster. It’s reliable, easy to manage, and works well for single-website setups.
I’ve personally used it and had a smooth experience with both performance and support. As for Digitalserver.com.mx and Regvps.com, I haven’t used them myself, but you might want to look into recent user reviews or test them out if you’re considering them.
If you'd like, I can help you compare features so you can decide what works best for your project.