I think dogecoin and etc is good investment for your portofolio. Remember that doge always have surprise for us at least once a year to gain until 100s satoshi, that a lot percentage profit if you hold doge. Then ethereum classic always have consistant price average, it can be used for your mid term investment, currently etc price is about $11, i'm pretty sure it will reach $25 this year.
And the last advice, don't buy at the single time, buy partially until you get the lowest one.