Foremost

You can also check out this routing service https://developer.tomtom.com/online-routing

It's affordable and uses live and predictive traffic

Have you checked out TomTom and Here too?

You've got a point. If it's just about showing things on a map, OSM will do. When it comes to routing or geocoding, you need quality, consistency and accuracy. And that is only offered by map makers like Here or TomTom. Both run their own Maps API platforms.

Definitely strong with map visualization. They're based on OSM map data, so weaker on anything that as to do with geocoding and routing (business data, speed data, traffic data). For good routing and search, you need to look at professional platforms from TomTom Maps, HERE, ESRI or similar.

Indeed, even Microsoft Azure launched their own Location Services as part of their cloud offering: https://azure.microsoft.com/en-us/services/location-based-se...

You should evaluate the TomTom offering too. https://developer.tomtom.com/store/maps-api

The TomTom Routing API offers directions based on real-time and predictive traffic. You can check it out for free: https://developer.tomtom.com/online-routing

Note: I work for TomTom

For professional maps, routing, places and traffic, you can try TomTom Maps (ndlr I work there). developer.tomtom.com

Free evaluations and the pricing is pretty straightforward, no subscriptions, no limits, no ads.