Hip Pain while Running. What are my alternatives at this point?

I think that from running so much (I’m a marathon runner), I’ve injured both my hip joints. To keep my fitness levels up, what alternative sports do I have?

I was thinking stationary cycling. What are your thoughts?
What about swimming or rowing? Will that work?

What’s the best to help me over this stupid mess?

Luckily I don’t have any races coming up, but I want to not stop my training.

Lastly, I do crossfit. Maybe wait on that too?