Sales QA for startups—Would you use a pro bono service?

Hi! Not sure if this is the right sub.

I'm currently transitioning into Sales QA with the long-term goal of moving into Sales Operations/RevOps. My background is in Compliance QA, RCA, audits, coaching, and customer support.

One idea I've been considering is offering free support to startups in the future, once I've developed more sales-specific expertise. Things like reviewing sales calls, identifying patterns, documenting processes, and helping improve quality and consistency while building a portfolio.

I'm curious: would this be something founders or sales leaders would actually find valuable? If so, what kind of support would be most useful, and what would make you comfortable working with someone in this capacity?

Thanks in advance for any insights.