You didn't get to buy these list of different altcoins randomly as am assuming you must have done some underground work before choosing to risk your money into these particular altcoins in the midst of hundreds of thousands of altcoins. I particularly don't fancy altcoins but I think your list is just fine, you don't have to expand your buy through random suggestions from forum members for you could be led to buying a lot of pump and dump coins.

If you feel it compulsory to expand your portfolio then you should add bitcoin to it this time, for a long term focus. It is common for some people to have interest in altcoins alone since they don't want to hold for very long but having bitcoin separately and be dead on it would be one of tue best decisions you will have to thank yourself for in tue future than only focusing on altcoins alone.