What coins do YOU personally think will show the greatest returns in 10 years' time, and why?

I know everyone always wants to find the next Bitcoin and it's not exactly that simple, but for those who believe in the future of crypto currency, I'm curious to know: what do you consider the most feasible long-term investments (ie not just pump and dumps that could make you rich only if you time it exactly right), and why? Let's confine it to any coins outside of BTC and ETH since those are still probably top contenders for many people.

Reason I ask is really just to see the variety and reasoning behind different choices. I'm only beginning to dabble in the crypto space but I've been trying to stock up (no pun intended) on ADA and MATIC. Beyond that, I've just been kind of taking wild shots in the dark.