Struggling to find a good python course

Hello all,

I am trying to find a python course that will take me quite far, with the ability to make projects that I can stick on my resume. I am doing it mostly because python is used a lot in physics, and plus it looks good for any grad school apps. I have experience programming: I took AP Comp Sci Principles in HS and got a 4, so I have a solid foundation of JS. Are there any free python courses that would help? Preferably a certificate as well but if not that's fine. All the ones I've tried to look up are all either priced or seem kinda fishy.