I want a tablet for graphic design and digital art

Hi, I am sort of getting in to graphic design and digital art, and I was wondering what tablets are recommended? I’m having a hard time understanding what exactly I should be looking for, as I am fairly inexperienced.
Anything more than 1k is definitely too expensive (I don’t know how much they cost). I was looking for affordable options to solve this and a XP-Pen ( https://www.xp-pen.com ) Drawing Tablets could be it.
Also, I have done several small design and art projects for local businesses and some work for a university project, but I don’t have any design qualifications. I was wondering if there are any online courses that would be best to take to improve my skills? It is more of a hobby for me at the moment, but I’d like to get more serious about it.

Any suggestions are appreciated.