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Finding an elytra without already having one is quite difficult as it involves building from island to island. Taking into consideration how explored the end already is, it could involve building over thousands of blocks.
I think it would be a neat idea if everyone had one. I've been flying around the end making new chunks and using the map overview to find cities I missed. As a result, I have four extra elytra. I'm on the hunt for more right now.
If you don't have one and don't plan on hunting for one, let me know and I'll hook you up. Id just suggest having a pair of feather boots (they're saved me numerous times whilst flying) and an unbreaking / mending book available from mph's villagers to make the elytra last.