Kind of a wide open question without some context of light, your experience level, expectations, etc as greene said.
I ditto Christine- except begonias -in between growing like mad, they seem prone to sudden death for me.
Add Peace lily (Spathiphyllum) which is easy to find. and
Philodendron, commonly a trailing one that looks a lot like pothos. LuckyBamboo is sometimes also sold in a small pot, and I think most Dracaena are easy.
Aglaonema- easy, one of these newer ones with red or pink markings is the last plant I spent money on.
Common Phalaenopsis blooming orchids flowers last a long time.