If you really want something for longterm, i can advise you platforms for crypto.
There are a few, but not many that haven't pumped up to the sky yet. So my coin to go would be naming Ardor. It should be up with Etherium and nem. and it looks like it will be going there!
Yes! I really like Ardor and I think it will be good long term! I would love to get into it, but because of the recent rise in the price I am still not sure if it's a good idea to get in now.