Hello,
At this moment, there isn’t a map to see all Wayspots. We used to be able to use the Ingress Intel map with an S2 overlay to possibly see what may or may not be stops/gyms, but Ingress split from Wayfarer back in May after the sale of Wayfarer to Scopely; Ingress was kept by the new Niantic Spatial.
We do have a thread discussing the importance of having a Wayspot map for Wayfarer now here that you may be interested in: Community Feedback: The Importance of a 'Wayspot' Map