There are quite a few options, even among basic sleights, for achieving that. A top change can work to switch the position of the top two cards, though only if moving the card is justified. I suppose you could Herman Pass a single card to from bottom to top to achieve this as well. You can set up a double lift that convincingly shows a certain card as being placed on top, while in reality it ends up second, which works in many effects. It really depends on what context you're using it in. There are a lot of sleights out there that achieve similar results through different means, and the context will tell you which one is the right tool for the job.
If you're looking for an introduction to basic card controls, there's wide selection of the basics in Royal Road, Card College, Card Control, and similar books. Jason England has video releases on the Herman Pass and the side steal individually, which I believe are both covered in Royal Road, but perhaps are covered in more depth in his videos. I haven't gotten the tutorials myself, but I know they're available here on Theory11, and Jason England certainly knows his stuff. If you're looking for a move to serve a specific purpose in a routine, it'd be helpful to understand more fully what you're after.