We like to have plants growing in pots. Most of them are on a big table just inside a big window so they get plenty of light. If any of them start looking a bit sickly, we put them outside for a few weeks - not in full sun, because that would be too sudden a change, but semi-shade outdoors still gives them more sun than anywhere indoors.
What kinds you grow depends on lot on space. African violets are attractive and flower all year round, once you learn not to water them too much. Coleus have beautiful colourful foliage and will re-grow from even a single leaf if you do happen to kill them. Small ferns and palms usually do well indoors, because they usually grow in full shade in the wild.
Bonsai can look great but have always struck me as kind of cruel. I think it's better to choose something that is naturally the right size than to torture a plant into something it never meant to be.
Good luck with whatever you choose!