We will need a lot more information first. Are you familiar with pistols, what is your budget, will this be a dual purpose gun, Range and carry. Are you looking at revolvers or semi. Your question as ask is like saying you need transportation. That could be anything from a bicycle to a one ton truck.
No one's going to be able to suggest the perfect gun for you. Give us more information and we can give you a handful to go check out. Once you have them all in your hand you will know which one is right for you.
Semi vs Revolver