Japan Ramen – tips?

Hello r/ramen! I need your help.

Me and my partner have been in Japan for some 5 days, and managed to try some ramen (pictured the 3 we tried thus far, a tonkotsu, a shoyu and a tan-tan men). While all were good, we feel like we haven’t hit the bestest spots for ramen.

Here is where in need your help. Do you have any recommendations for veeery good ramen on Tokyo asakusa? We’ll spend the next 3 days there and would love to try the best ramen possible. We both love tonkotsu, but our favourite so far has been the tan tan men, both for the both flavour and the quality of the toppings. Dipping ramen recommendations are also welcome.