BuddyPress.org

I use this little plugin https://wordpress.org/extend/plugins/custom-profile-filters-for-buddypress/

The description is not really that helpful. basically you can define certain xprofile fields to link directly to external URLs. e.g youtube, facebook, twitter, external website….etc etc

you need to manually alter the .php file in the instruction but this is very simple to do and it comes with a few stock media sites setup already.
Very good and very simple