@Ozys
Journey based traditional fantasy...
Well as far as finished series go, what comes to mind immediately would be:
-"Record of Loddoss War: The Grey Witch" (the obvious choice of the most influential genre codifier)
-Half the other Redcord of Lodoss War comics(don't remember all the names)
-"Nausicaä of the Valley of the Wind" (not really a journey focused manga series, but she comes around and there's a lot of exploration anyway)
-"Caravan Kidd", "Ozanari Dungeon", "Choujuu Densetsu Gestalt" and "Dragon Half" for all the originally annoying 80's and 90's fantasy tropes that by now may either be seen as nostalgic for older or completely new for younger readers.
-Helck (doesn't start out as a journey but does turn into one for quite a while)
-"Spice and Wolf" (started strong but I lost interest along the way and only bought them all out of obligation)
-"Sekai Maou" and "Yotsukoto" (relatively new, slow paced and somewhat small scaled stories of the same author, I prefer the former)
as for ongoing series:
-"Henkyou No Roukishi - Bard Loen" (the last journey of a retired Knight)
-Boukensha Ni Naritai To Miyako Ni Deteitta Musume Ga S Rank Ni Natteta (Not really journey based but still somewhat fitting)
-Tsuyokute New Saga (a new series using many old tropes, some of which I'd have preferred to remain forgotten)
I tried to have a mix of different styles,but half of these I only read on paper, so I don't know how available they are on the net.