If you have any stylus questions this video should answer them. If you're new to working on the iPad and want an inexpensive stylus to start, this one on Amazon is good.
https://www.amazon.com/Dimples-Generation-Micro-Knit-Replacement-Signature/dp/B074H24YT2/ref=dp_prsubs_2?pd_rd_i=B074H24YT2&psc=1