I own a website that makes extensions for Google Chrome, and I have made couple of cool ones for anime lovers.
For example there is Shield Hero Wallpaper extension that lets you change your new tab background with wallpapers of Shield Hero. I'm personally a huge fan of Shield Hero, so when I made this extension I put a lot of effort into this.
I have made some more like Fairy Tail Wallpaper extension, Black Clover Wallpaper extension and much more. These are all animes I love and watch. If you want I can make one for you, just write in the comments which one you want, and I will make it as soon as I can.