Is there any Muay Thai / K1 competitions in the UK and Ireland?
You should join up with a Muay Thai school in the area that supports and trains fighters, just ask them if they train fighters there or if it is just for fitness and the coach will set you up with the fights, once you have a few Muay Thai fights and win then you could get signed up and fight for K1, but win some Muay Thai fights first and get your name out there, good luck