I'm nearly running out of storage on my iPhone 6?

How do I get more storage? I got the 16 GB

Deleting stuff or moving stuff to your PC or a cloud service. There's no way to expand the internal memory.

This is an example of why Apple kept the 16gb version instead of the 32, so people would prefer to pay more for the 64gb version than stick with 16 (or 32 if it would exist).

You need to check what is using all your space