Either free with OSM maps or upgrade to TomTom maps. Free OSM maps are updated fairly frequently. Now Premium upgrades offer things like 3 suggested routes.
Ranked in these QuestionsQuestion Ranking
Pro Very in-depth adjustments in settings
You can define vehicle type, which roads you prefer to use (highway, secondary roads, local road) all with a percentage slider.
Pro Free monthly updates
Every month there are free map updates.
Pro Up to 3 suggested routes
This is a premium upgrade but worth the small cost. Without it Navigator always has a preference for main roads.
Pro Free with OSM maps
MapFactor also provides regular map updates.
Con Nag screen to upgrade to Premium TomTom maps
Even if you click 'Don't show this anymore' you still get constantly nagged to upgrade.