First time e-commerce noob, I Just downloaded a HTML template, I want to start a cannabis grow supply store but I don’t want to source through Amazon, I Don’t want to ship from china. Where do I find high quality products from top brands?

I could also use some help figuring out payments and hosting. I know HTML and CSS, I want to host it through google drive because it's free, so I know I'll probably have to have a third party secure payment gateway I could really just use some feedback on everything.