If you need a graphics tablet, I very highly recommend the XP-PEN Deco 03 https://www.xp-pen.com/product/89.html . This is what I use and its priced very reasonably.
the drawing software I recommend is Clip Studio Paint Pro. It is an inexpensive one-time purchase (no subscription, free upgrades) and is used by people at every level of experience. I, myself, use a variety of different digital art applications but Clip Studio Paint is my go-to – it basically stays open on my computer 24/7.