Interest bearing options include stocks, certificates of deposits and anything that you can make a percentage of your money grow.
for the first example, real estate! it is one of the few things that will continuously go up in value. And what is meant by that is that in reality the house you live in is not an asset it's a liability but if you own many rental properties then it will pay for its self and for you to live if you do it correctly. the Second example of an investment would to build a collection, it doesn't have to be something super high dollar but after a while and if what you chose to collect becomes largely sought after you can double or even triple your money when the right buyer comes along.