Another powerful option is Magic Hour, an AI-based service that makes video creation from concept to delivery easier. It's got tools for video-to-video, face swap, image-to-video, animation and lip sync, along with templates and effects. Magic Hour has several pricing levels, including a free Basic tier, so it should be useful for people at different skill levels and with different budgets.
If you want a more sophisticated AI-based approach, LTX Studio has a range of tools, including Frame Control, AI Storytelling, Character Consistency and Automatic Edits. It's for people at all levels, with a web-based interface for quick access and a community where you can learn and get ideas.
Last, Slick has a clean interface for sprucing up video with tools like AI B-roll, sound effects and video length changes. It's designed to let you edit and share your video easily on many services, so it's good for people who want to make good-looking videos but don't have a lot of editing skills.