Insou is a good option. The service uses AI to help you write a compelling presentation with a minimal amount of design work. It's got a Notion-Style Markdown interface, an AI Copilot that suggests text as you type, and built-in support for media. Insou has a range of pricing levels with advanced analytics, so it can accommodate a variety of needs.
Another strong option is Gamma. Gamma uses AI to help you create presentations, documents and websites. It's got design, text rewriting and integration abilities, too, and advanced analytics. It's designed to span the gap between traditional presentation tools and more interactive content, so it's worth a look.
If you want to use generative AI to automate your design, Beautiful.ai is a powerful option. It's got smart templates, team collaboration and advanced analytics. The DesignerBot AI assistant will rewrite your presentations instantly as you add content, so the design work is very automated.