Don't forget a CPU cooler, unless there is one already included in the box your CPU comes in. Depending on your CPU, a stock cooler may not be efficient enough. As well as additional case fans if your case does not have fans already included.
reddit also has a few communities that help with building PC's, one that helped me was /r/buildapc
YouTube has some PC Build Guides, one YouTuber I recommend is Joey Delgado; and seeing that your budget is $1000, not including peripherals, he has a few $1000 build guides. I followed his most recent $1000 build guide; but because my budget was higher, I used a different motherboard, case, case fans, ram, and cpu cooler, to fit my personality; however, a majority of the parts are still the same such as the CPU and GPU. At the end it runs all the games I've played at maxed out settings at well over 60 FPS @ 1080p: Overwatch, Battlefield 5, CS:GO, Rainbow Six Siege, Apex Legends, Rust, Garry's Mod, and... Fortnite. If you still play Fortnite. If you want to see the benchmarks, it's also within Joey's $1000 build guide.
Hope this helps :thumbup: