Getting sign-ups via integrations/app marketplaces

Does anyone have a definitive strategy/playbook for getting product sign-ups via external listings on third-party marketplaces? Eg: Google Workspace marketplace, Salesforce AppExchange.

We've built integrations for our product across categories (CRM, helpdesk, project management, BI etc) and we've gotten listed on the integration marketplaces of all of these platforms.

However, our competitors are also listed on these platforms and they seem to do better (appear higher on searches within the marketplace for category keywords, or have more installs).

We've added relevant keywords that our competitors use, we add relevant images, but our listings are lagging. Sure, not every listing is going to click, but if there was an iterative strategy to make improvements, I'd love to hear it.

I'm not an ASO/SEO expert, so suggestions are appreciated.