I sort of fell down the rabbit hole of nootropics over the past year, of which Modafinil is a frequent recommendation.

I don't know if I would really recommend nootropics to the average person (because there is risk involved, and many of these substances have had very little in the way of human studies), but it's been an interesting journey. It was kind of a pandemic hobby I picked up.

My favorites are Aniracetam and Phenylpiracetam. (Both have become increasingly difficult to source though, despite still being legal in the US.) On top of a stack of supplements (magnesium, vitamin D, zinc, and fish oil).