Coins you have chosen appear fine to me, you might as well pour rest of portfolio in them and have pretty much guaranteed returns, no need to go for risky ones. Plenty coins have been suggested here but you must not heed someone else blindly, do your own research.
Make decisions on your own, either you will succeed or there will be a lesson which will make you wiser while making next choice. Also, don't test depth of river with both feet.