Interactive Card using hooks in React JS

I have difficulties to input errors, and to connect items, for example: I wanted to show error message according to what input I was typing or what value I was changing. I tried Map, Filter, Reducer, Object.values(), and I cannot make it done. Whats is the best way to to this? using many useState(), useReducer() or simply using useState({name: '', number: ''}), or using an Array. I want some help and advices, please, I want to improve more and more.