Hi, I’m glad you like my knitting blog. ^^
If the “basic” stitch is the knit stitch, you’re about halfway there, actually. The world of knitting is made up of two entities: the “knit” and the “purl”. Any other stitch is just a variation of the two. :) (also, the purl is actually the opposite of a knit. If you purl all in a row, they look like knits on the other side)
By ‘variation’, I mean abbreviation stitches like “k2tog” (knit two together) and “skp” (slip one knitwise, knit the next one and pass the slipped stitch over) and etc. Usually in a pattern, they’ll tell you what these abbreviations mean, so I don’t find a need to memorise all of them. Anyway, even if it’s not explained in the pattern, or you’re not sure what it means exactly, just key in the stitch name into YouTube. Definitely, someone must’ve posted up a video of them making that stitch. :)
So yes, all you need is the “knit” and the “purl” and you’re set. :D
If you meant what sort of pattern stitches you should learn next, I’d say, stockinette (knit all in one row, purl all in one row, repeat), moss stitch (knit 1, purl 1 to the end, then purl when you see knits and knit when you see purls) and rib stitch (knit 1, purl 1, to the end, purl when you see purl and knit when you see knit). They’re the most common.
I hope I helped. ^^ Feel free to message me if you have any more questions.
Happy knitting. :)