WallpaperCave and WallpaperSafari have dedicated sections for 1080x1920 iPhone backgrounds.

For a more unique look, Pinterest features neon line art and minimalist "Straw Hat" designs.

💡 Since modern iPhones (like the iPhone 13 or 14) actually use resolutions higher than 1080x1920 (e.g., 1170x2532), these 1080p images will still work great, but you might need to slightly zoom and crop them in your settings to avoid black bars.