Which on-page optimization tools are known for real-time content recommendations and team collaboration?

A few well-known on-page optimization tools are especially recognized for real-time content recommendations and team collaboration:

• MarketMuse – Offers real-time content guidance, topic modeling, and collaborative workflows for content teams.
• Clearscope – Known for live content optimization suggestions based on top-ranking pages, with easy sharing and team use.
• Surfer SEO – Provides real-time content score and recommendations while you write, plus collaboration features in team plans.
• Frase – Delivers content briefs and optimization suggestions in real time, with tools for teams to work together on content.
• Content Harmony – Focuses on content planning and optimization with collaborative workflows for editorial teams.
• WriterZen – Includes content optimization insights and team-oriented planning features, though it’s more known for keyword research too.

If you want, I can also rank these by:

1. best for SEO teams,
2. best for writers/editors, or
3. best budget-friendly options.