Describing a shitcoin varies from person to person. An alt that made you good money doesn't mean that it's a promising one. So please be honest, and if you ever have to sell your btc, what would you buy with them?
My first vote to Monero, for privacy reasons. Fuk ZEC and its "optional privacy" which is NOT a privacy actually. DASH? Lol, no privacy. Another bitcoin clone methinks.
Second one is Ethereum, there is no serious competitor in smart contract area.
I cannot find third one. Maybe NANO.
I've been doing this in 2017 because there are a lot of good coins to buy in their ICO stage in that year, I trade my Bitcoin for these coins that's become a shitcoin, so I don't think I'm going to do it now in a new coin, but I have to sell my Bitcoin for altcoins, it should be on a more stable coins in the market, like EOS, Tron, and Ethereum, these are stable coins and will always stay on top in the market, because of their contribution in the industry.
In that year altcoins are in demand and we can say that has a good future compare to this day that we don't have much successful ICOs as many of them were scams, as well as there are lots of investors during those time unlike today wherein people are tired and stressed for having a scam ICO or projects