best way to using CQRS in asp core [closed]

I using Mediator to use CQRS. Do you think I should use CQRS architecture without using a library like Mediator or use libraries like Mediator?

i know . other company need using mediator and other need to row CQRS but i need to find best way for using the CQRS and I'm successful in job interviews .

in last please Introduce to me best book for Domain Driven Design , Design Pattern , CQRS .

Thanks