All coins are hidden gems if you are considering for the long-term holding. So, the time, for now, is DogeCoin. So, buy more now and hold for three years.
Your kidding right? Dogecoin? A joke memecoin has no future in crypto.
Might as well invest in FUCKtoken(FUCK), it's something people actually give a f**k about, check out their website for a solid laugh. All jokes aside, I think MAN, SPACECHAIN, ELIXIR could likely 10x this year.