Best ways to present project milestones to clients without looking generic?

Hi folks! Our agency is currently wrapping up a major project milestone for a key client, and I need to put together a presentation that highlights our deliverables and next steps. The problem is that every time I use standard office templates, the slides look generic, boring, and totally uninspiring. I want our design to look sleek, modern, and professional to match the high quality of our engineering work, but my design skills are pretty limited. Are there any smart tools, software platforms, or a specialized AI presentation generator that can help format project data into clean visual slides? Any top software recommendations or workflow tips would be super appreciated!