wallpaperflare.com
WallpaperFlare is a wallpaper site that collects HD wallpapers for PC, mobile and tablet desktops, including 720P, 1080P, 2K, 4K, 5K and 8K resolutions. It states that all wallpapers are free to download. The site presents popular HD wallpapers spanning subjects such as landscapes, digital art, anime, cars and video games.