Native English speaker who can teach classes to those looking to learn English

I am currently in Barcelona on exchange from University College Dublin. I am currently completing a Bachelor's Degree in Political Science and International Relations. I speak fluent English and hold a B1 level of Spanish.
I love to learn and to teach and I would enjoy teaching English to preschool or primary school children.
I would be open to talking to older school or university people looking to learn English to see if my teaching would suit you.