Wallpapers are horrendous

Hey y'all, I've always never been able to find a wallpaper that isn't blurry or extremely pixelated for my iPad and I'm now having the some trouble with my Mac. No matter what I do, I can't find a quality wallpaper, I didn't really care on my iPad but I want my mac to look nice and I can't do it without a good wallpaper. If y'all have any suggestions for websites or anything, please share, I'm into aesthetic (not pink) wallpapers. I mean I've researched and I've tried other people's suggestions but nothing works.

Thanks in advance guys.
(M3 Macbook Air 13 Inch)