You could argue really that his samurai films were more his "blockbusters" compared to something like Ikiru but as Zer says I'm not sure I would class Ran as the same kind of film. For one thing its not much focused on typical samurai elements, no sword fights, no lone samurai righting wrongs, etc being more a political/war epic but generally I think its artier in style as well.
I'v still to watch a lot of his work but Ozu would be a good recommendation for contemporary drama, Floating Weeds would be my favourite so far.
A lot of the time I would say the strength of the samurai film is that its so flexible, moreso than the western for me where the likes of El Topo or Once Upon A Time in the West are rarer(part of why the genre declined more IMHO). Yojimbo is really more like a noir film for example or with those recent recommendations on my list Twilight Samurai is a subtle love story, Zatoichi more a stylish/absurdist yakuza flick and 13 Assassins has plenty of Miikes style to it.