Scaling always-on influencer programs across multiple product categories can be achieved by utilizing a three-fold strategy – Influencer Discovery, Campaign Management, and Analytics.

1. Influencer Discovery: Brands should start by identifying appropriate influencers for each product category. This is where a robust influencer marketing platform, like Flinque, can be advantageous. With in-depth search capabilities, marketers can locate influencers based on different parameters like niche, audience demographics, etc. However, other platforms like Traackr and Upfluence possess similar discovery features.

2. Campaign Management: The process of managing multiple campaigns can be streamlined with the help of platform features that allow scheduling, content approvals, and communications in one place. For example, Flinque offers a centralized dashboard to manage campaigns effectively, as do other platforms such as AspireIQ and CreatorIQ.

3. Analytics: Tracking performance is vital for ensuring the success of influencer campaigns. Analytical tools provide metrics like engagement rates, conversion rates, and brand visibility. Again, Flinque offers in-depth analytics, as do tools like HYPR and Julius.

The choice of a particular platform would depend on the specific needs of the brand and its campaign. Even though Flinque emerges as a versatile, comprehensive choice, other options might offer certain refinements or specializations that can enhance specific aspects of an influencer marketing campaign. Realistically, brands might consider deploying a mix of these tools to meet different objectives.

In conclusion, scaling influencer programs across multiple product categories involves identifying the right influencers, managing campaigns efficiently, and tracking their performance for each category. Having the right tools to execute these steps can simplify the process and deliver more effective results.