see first whether the new altcoin has good fundamental or not, you can see Eterbase, Emirex, Tokoin,
they are new projects that have good quality and are considered good for mid-term investment
I think there are still many altcoins that can be used as a medium or long-term investment other than what you mentioned. It's just that maybe some people don't want to wait long to get the profit they want, especially with the current market situation