Insights on compliance training and software?

Looking into compliance training and reporting software for small to mid sized companies and niches; and would love any leads or resources if you're familiar with the space or folks who looked into them. Specifically looking to learn about:

Most important buying criteria for owners/HR - personas and trade off criteria for personas

Understanding learner experience and feedback loop with HR - is talent inundated with requirements? does HR care about and or respond to user experience?

Macro trends in niche growth, market penetration and M&A trends

Specific niches of interest including cyber security, nursing, diagnostic labs and aviation; and open if there's one you know well but not highlighted