Most soft corals are suitable for a novice aquarist. Some SPS would be certain species of Montipora, Pavona, Porites, Seriatopora and Stylophora. As for LPS, Favites, Favia, Trachyphyllia, Blasto, Acans, Caulastrea, Euphyllia, Echinopora and Plerogyra are a good choice.
Be aware of chemical warfare and sweeper tentacles when adding corals and placement within your tank so that injury or death of a coral/s doesn’t unfold.
Also, be aware that corals require different lighting, water flow and positioning within an aquarium. You will have to research or ask to be sure you are ensuring your Corals have the best chance of success.