As usual for any naïve question, you need more information - how much voltage you are using, whether you want AB or only A, how much drive you have for the output stage, and how much heat you can dissipate. You also need to recognise that to drive 4R, regardless of low power, you will need global feedback and this entails a complete front to back design. You know enough to get yourself into trouble, but not sufficient to describe the complete problem. Look up Dunning Kruger.
Many people here have this experience, but you cannot demand this information as it's hard won and many do not have the energy or inclination to help. There is nothing in it for them...... and it's not helped by your impatience and sense of entitlement.