Is there a site where I can get skyrim legendary edition for $9.99 at the moment?

$14

https://uk.gamesplanet.com/game/the-elder-scrolls-v-skyrim-legendary-edition-steam-key--1057-5?ref=itad

Your best friend, when you have a question like this, is this website. For instance, if you look up the game you're interested in on that site right now it gives you the following rundown of available deals as well as information on how cheap that same game has been in the past (so you can consider if it's worth it to wait for a better sale).

You can even import your Steam wishlist so that the site sends you updates when games you're watching go on sale.