Plasmic is a visual, no-code page builder with a built-in headless CMS: non-developers build and edit pages visually while developers integrate the output into any codebase via SDK, with support for A/B testing and dynamic data binding.
Free tier: unlimited projects, headless CMS for up to 3 collaborators. Starter ~$39-49/month (annual), Scale $199/month, Enterprise custom.
Teams with an existing React codebase who want marketers/non-developers to visually edit content while keeping full engineering control over the underlying components.
Because it integrates via SDK into an existing codebase rather than hosting the whole site itself, this fits better as an addition to an engineering-owned React app than as a standalone website builder.