I have Seafront Simulations Global Shipping 24 (currently v1.3.0, streamed from the Marketplace), and it works well on my PC & hightens the sense of immersion when flying along coastlines. Note that it does not replicate live shipping though - see their FAQ here for more information.
Edit: I’d also point out that sometimes their ships come perilously close to shore when approaching a harbor or port. Not all the time (I’ve only seen it once or twice), but it shows that in a few areas their ships don’t follow the actual real-life shipping channels in those areas. Not a big deal for me, but something to be aware of when making a purchasing decision.