[Flutter] What's the best API or SDK to trace route and map implement navigation?

I would like to draw a route between A Point (which can be our current position or a given address) and B Point, doing turn by turn navigation.

I first used the google maps API inside my flutter application but i noticed, i could not do the turn by turn navigation. Then, i tried to use HERE sdk but it is not available on certain countries.

Also saw the google's routes API

So what is the best API or sdk to use if i want to implement these maps features ?

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