Lots of authentic French bakeries in Japan
Many bakeries in Japan, especially in a trendy area/at a major station building, offer authentic French-style bread.
Paul is a well-known French bakery chain, but Jean Francois, Le Pain Quotidien, Bigot, Viron, Aux Bacchanales and many other local bakeries have amazing selections of bread too.
Magazines also feature bakeries in Japan, so if you're a bread lover, check Hanako, Brutus or other lifestyle magazines for cafes and breads in Japan.
Natchan