The LOL Surprise Box - What is your B.B.'s L.O.L. Surprise!™️ name? Take the words associated with the first letter of their first name and their birthday month, and then you'll have
LoL Names - Dashboard
League of Legends: Unfortunately Your Desired Name is Not Available || League of Legends Name Change - YouTube
What is Riot ID — How to Name Change in Valorant and LoL - Esports Illustrated
League of Legends name availability checker (USA is free on NA) : r/leagueoflegends