If you want a fast and easy way to change backgrounds in photos, BgSub is well worth a look. The AI-powered tool lets you erase backgrounds or replace them with new ones, with options for high-precision removal and replacement, one-click color changes and artistic effects. It's good for social media posts, web design and eye-catching ads.
Another good choice is Fotor, an all-purpose online photo editor that uses AI to automate some tasks like background removal and object removal. It also has features like batch photo editing and AI-powered photo optimization. Fotor works on multiple devices, so you can edit on your phone or tablet, and there's a free version and more-advanced Fotor Pro features.