Where can I buy everything I need for eyelash extensions?

I'm taking a course in eyelash extensions right now. I want to open my own small beauty salon. And now I want to find a good store where I can buy everything I need. I am sure that on the forum there are not a few masters of beauty. I want to ask you to share information with me. Where do you buy eyelashes for eyelash extensions, glue, tools and everything you need? I will be grateful for feedback.