If you need a no-code way to create and customize image templates, Switchboard is a good choice. It's got a Template Designer with responsive design abilities and No-Code Integrations that let you set up the generation of many different templates. Background Removal and direct output to AWS S3 make it a good choice for content creation automation. It also supports more than 70 languages and offers a 14-day free trial.
Another good option is Bannerbear, which is geared specifically for generating visual content like social media posts and ecommerce banners. It's got a template library, multi-integration support and AI-powered face detection. Bannerbear is geared for marketers and content creators, and it offers a free trial with 30 API credits so you can try it out.