- Cardano (ADA)
- Polkadot (DOT)
- Litecoin (LTC)
From the list of 30 now down to three, I believe these are worth to invest with because they have the great network and they are growing faster than what we are expecting. Though LTC are quiet not that active but still, given the experience that he have here in the market, I still see this one as a valuable altcoin to hold for.
With the recent pump with ADA, that is because of the updates over the past months and with Polkadot, you can also see their real potential in this market. Just set up your qualifications on investing on any project, like the pros and cons and do you best to analyze if properly, better to have a consistent criteria so every you invest, you know what to look for.