These 3 and the first one is the longest.
1. Long Patriarch Beard - the longest beard
http://files.elderscrollsonline.com/cms/2016/08/275960461237ab2b0a6c46b474f85c6b.jpg
2. Ringed and Gathered War Beard - the one from the aforementioned barbarian pack
3. Sailor’s Squid Goatee - the wide fancy beard
http://esosslfiles-a.akamaihd.net/cms/2017/01/6bb1abbfe6405d8572aead8aa0312fb9.jpg