Visualize popular routes/connections

I'm working on a dashboard for regional tourism agencies (both private and governmental). One requirement is to visualize popular connections between points of interest (POI). So for each POI where are people most likely to come from and go next.

The dashboard is aimed at management to answer questions like: what POIs are popular at what time? Which POIs are likely to be visited next or have been visited before (do we need public transport, improve signs, sell tickets for multiple POIs together...)?

What'd be a recommended way of visualizing that? I read through this post on this site and I agree with what was said about the map getting confusing with a lot of intersecting lines particularily in the city center. What would be good alternatives?

I found some circular flow charts like that but I'm not sure if there's any benefit of visualizing the data that way of if it's just overwhelming and confusing.

I'd like the dashboard to be more engaging than a simple table with source POI, target POI and number of visitors visiting them both in sequence but I also don't want to overwhelm the user. So I'm happy to find inspiration and recommendations how to best present data like that. Thank you.