Ramen Naojin
Non-tonkotsu ramen by a chef trained 10+ years at famous Tokyo ramen shops. Only 7 counter seats. Rare Tokyo-style soy sauce and chicken paitan in Fukuoka. Always has a line. 3-min walk from Tenjin-minami Station. Cash only.
Reviews say 'shocking quality for non-tonkotsu ramen in Fukuoka' and 'arrived past 2 PM and there were still 12 people in line.' Tabelog 3.54 with 314 reviews. Extremely popular with local ramen enthusiasts.