How do I get OTA update on rooted HTC ONE M7?

Hi I have a htc one m7 rooted running twerp, I dont know a whole lot about rooting I just want some of the features that comes with it. I bought my HTC in Denmark where I live so therefore my english isn't on spot. So it is not a sprint or anything like that it's ciid is htc__y13 how and where can I find stock rom so I can install it and get new ota update and after the install twerp. Is there anything i need to do? And will it wipe my data? pls help me, it would be highly appreciated!