If your coffee table has a lower shelf you don’t have to fill both levels but if you choose to try lining up the items on each tier. Use two pairs instead of threes and don’t forget to play with heights. A lidded storage box or small basket can help keep the bottom level looking sharp while giving you a place to stash items like remote controls.
If you get a tufted ottoman consider the depth of the tufts — especially if you expect to eat on it. Crumbs will find their way into the tufting and are not always easy to get out. Round coffee tables aid circulation especially where there are many available seats as in this example. If not every seat can reach the table make sure there’s another surface at hand.