There’s wallpaper sites a plenty to be found on the interwebs, but unfortunately most of them are biased towards half naked women and random abstract images.
Wallbase.net is different.
Essentially a crawler/scraper site that collates wallpapers from all over and lets you choose the exact type of image you’re looking for. You can choose your level of NSFW, SFW, or “sketchy” as well as resolutions, aspect ratios’s, even color schemes!
It’s a great site that makes finding a quality wallpaper online, that much easier.