TXT merch for european concerts

Hello MOA, can you recommend me some good k-pop stores where I can find the lightstick and other merch? And I've seen other fans that have the name of the bias on the lightstick, do you know if that can be bought or are those handmade? P.S. if anyone is going to Paris or Amsterdam with a deluxe vip and needs company, please let me know 🥹