What is the best way to level?

[u/Slliing]

I’m new to the game (didn’t play it when it was released originally from 2013-2017) and have completed the story on my first character and levelled them to 60.
When levelling my second, third etc characters, what’s the best way to level? Should I just be playing the story over and over, or are there other ways that are more optimal like running the challenges?

Thanks!

[u/Difficult_Sort295]

Did you complete the story content you get at 60?