Once again we are back to the eye of the beholder. Some people love softies because of how they look while others just go drop jaw over LPS
and others do the same with SPS
I would suggest if you have not done so maybe look thru our photo gallery ad the corals and decide what you feel appels to you visually. Once we have a basis of what types your looking to keep we can give you our best advice on lighting requirements, water requirements, etc.
Overall I would classify most softies and mushrooms as easy to keep. There are some sofies that I would classify as expert or even 'impossible' to keep alive corals but the bulk of them are very easy.
I do give one suggestion and that is to say away from any coral that shares the common name of "Flower pot".