Hi mum, for K1 I feel the most useful enrichment is not too academic yet, but more on building foundation like phonics, early reading, and basic numeracy in a fun way. Some mums I know go for centres like MindChamps Preschool enrichment, S.A.M, or even small local enrichment centres that do phonics + basic maths readiness classes. At this age, I would suggest not overloading too many classes yet and see how your child enjoys the learning style first. A good enrichment is one where the child still feels happy and curious, not stressed, because that will help more when preparing for P1 later on.