graphic tablet is actually required if you are serious about 3D sculpting and texturing . Try it for yourself with mouse and you’ll see how difficult is to get any good results.
Problem is that with mouse you don’t have that pressure sensitivity that you need.
As for myself I’m highly satisfied with XP-Pen Deco Pro S : https://www.xp-pen.com/product/432.html . It’s a little bit expensive but totally worth it. But any other tablet will do just fine.
