Ramen is a great soup. But I haven't been blown away in any shop not even Japan. EXCEPT that random place in Kyoto we went into without plan. I think it's even a franchise. Not an ancient shop with 100 year tradition or something:

https://salmonnoodlekyoto.com/

I got the "Salmon Dandan Noodles". Good lord that broth. No idea what was in there. It wasn't clear; rather slightly thick and creamy. And the salmon was so tender. I don't even like pork but I also ate that without thinking. Man I still miss that dish.