Your best play is to show up with an insight backed by data. I think many product marketers over-index on the product and not the market and you have an opportunity to bring market insight into the organization. Being new is actually an advantage because you won't be skewed by the history of the company.
You'll know what insights will be most impactful to your organization but a few ideas:
All of these will differentiate you to your new team members and be really useful to the organization.