If you're looking for a BgSub alternative, VanceAI is another good option. It's a collection of AI-based photo editing and editing tools, including an AI Background Remover that can perform a range of tasks. VanceAI also has tools for upscaling, sharpening, denoising and restoring photos, so it's a good option for pros and businesspeople.
Another good option is Remove.bg, which focuses specifically on automated background removal. It can handle a variety of image formats and sizes, and has flexible pricing options, including a free account with limited credits. It's good for individuals and businesses that want to automate image editing and integrate with common design tools.
If you need high-quality cutouts and want to be able to process lots of photos at once, Slazzer is another good alternative. It uses sophisticated computer vision algorithms to try to figure out what's a subject and what's a background, and it can integrate with Adobe Photoshop. Slazzer has a variety of pricing tiers, including a free option, so it should be useful for different people.
Last, Removal.AI offers fast background removal and some nice features like bulk uploads and careful handling of hair or fur edges. It's good for e-commerce, graphic design and product photography, and has a flexible pricing system with a free plan and several subscription tiers.