I think IOTA is the next big thing and there is a lot of news and rumor around this coin, but if you're looking for a long term investment that i can recommand Cardano the co-founder of ETH is behind this coin.
I can see why the same cardano has been rallying pretty big these days on the upper side. It really had a major pump recently and even if anyone would want to invest in this coin, it is better to chill and let it settle down for a while before even trying to hop in so they do not start sweating under the shirt. Good for those who were holding this coin earlier before the pump; they must have really hit it big.
Iota is the best investment for long term holding. I think this is most trusted cryptocurrency it will raise in digital market and also many futures are available in crypto world. So all are like to invest in Iota coin. I suggest to invest in Iota is much better than litecoin and Monero. But these two coin also good in market.
IOTA will really do pretty well in the long run and that for sure is just one coin to hold. No doubt about it. There are so many other coins one can invest and there so many undervalued coins right now which really I am just surprised they have just been so silent for a while now. At first, I though waves would do it, but these days I am beginning to rethink. One thing about the ALT market is that it is too big and most of them are just trying to find relevance with their pumps.