What if you're holding several different cryptos that aren't supported on the Ledger Nano S. If I'm invested in 10 currencies long-term how do I store them?
Yes , this is the real truth about the bitcoin and altcoins to have put all together in the single Wallet but still we have some options to have multiple coins Wallet together at one place that is coinomi .
You can found the coinomi Wallet at the playstore also , so instead to think much about it first try that app because that wallet support multiple coins even bch coin also , so that is better for use .
https://play.google.com/store/apps/details?id=com.coinomi.wallet this is the link to download that Wallet , hope not any problem will arise for you because Wallet has about every option for the coins to handle ( like import and export private key also ).