Can you tell me which is the best way to get to Manhattan from the airport . Taxi how much roughly or is there a bus or train?

We took uber cost us $50. + but going back they charged us $70.+

There's a train that takes you into Penn Station, and is probably the cheapest and fastest way, but you have to consider hauling your luggage and then going on from Penn to wherever you're going. A taxi is going to be minimum of $50 and probably more depending on traffic.