One promising altcoin in my opinion is ETN, if they will do what they said on whitepaper and on will continue development can be a successfull project over time. And to choose 5 altcoins will be ETN, XLR, DGB and MVT tokens i don't know really right now what to choose one more coin under 1$. But anyway invest only money that afford to lose.
Thanks for your answer, yes i know ETN, i remenber the big hype in the beginning of 2018 with the ath around 20 cents.
I don't know Solaris ( XLR ) ATH 48$ and now 0.73 cents but low liquidity and 824th. That's risky baby haha! But i don't know the project yet. And probably your are a old holders from the ath ?!
DGB good choice, ath was 0.129 cents and now the price is 0.014 . Cheap !