>>721962If you're getting a graphics tablet that doesn't have a screen on it (you probably will, since ones with screens are expensive af) then try to get one that is as close to your monitor's size as possible. If the active surface on your tablet is way smaller than your screen, then you run into scaling issues (moving the pen one inch on tablet moves the cursor two inches on the screen, that sorta thing.) If your monitor is way too big for that, then maybe consider getting a cheapo one that's 1 to 1 with whatever tablet you get.
I've heard good things about Huion, though I've never personally used one. Don't start off with anything Wacom unless you're planning on using it professionally. They're overpriced as fuck, and the differences between them and their competitors are only meaningful in a professional setting, and even that's debatable. A lot of people swear by battery-less pens, because they're lighter. I've used both, and, in my experience, the weight is negligible, but if you're sensitive to that sorta thing then it's something to consider.
If you want mobility on the cheap, Samsung's Galaxy Note 10.1 2014 edition is a really good tablet for sketching. I got mine a couple years back for like $150 and it's been very good to me. I still use it regularly for quick sketches when I'm out and about. If you have a little bit more money and want a desktop OS, you could go for a Surface Pro 2 or 3. I have an SP2, and it keeps up well enough with what I do on it.
As for art programs, if you're on Windows or Linux then check out Krita; it's a very good and free art suite that I've been using for years now and swear by. On Android, I really like Artflow. It's a couple bucks for a license, but it's fast and well-featured (for mobile, anyways)
Good luck, anon!