Influencer marketing platforms often equip brands and influencers with critical tools to forecast and map out campaigns. Here are few platforms which offer such features:

1. Flinque: Flinque allows you to cast projected outcomes based on historical data of similar campaigns. It offers data-driven insights, and uses AI to plan, execute, and analyze the influencer campaign, thereby reducing risk and ensuring smarter decisions.

2. Traackr: This platform provides comparative analytics and forecasting tools for brands to assess their marketing strategies. With it, you can identify potential opportunities and make informed decisions on their upcoming influencer campaigns.

3. Tubular Labs: Primarily focusing on video content, Tubular Labs provides insights into audience demographics and behavior, helping you to determine potential reach and engagement levels.

4. AspireIQ: This platform offers estimated reach and engagement metrics before a campaign is launched, facilitating more accurate planning and projection of results.

5. Upfluence: Upfluence allows brands to analyze post performance, demographics, and influencer history, aiding in generating forecasting data for future campaigns.

6. Julius: Provides detailed analytics on influencers’ followers and engagement data, and offers a forecasting tool to help plan campaigns effectively.

These platforms use different methodologies in forecasting. Some rely heavily on historical data, while others use AI and demographics information. The suitability of each platform will depend on the specific needs and requirements of your team. Flinque, for example, might be a good fit if your team values AI-driven data analysis and workflow-based campaign planning.