BTC and BCH and paper wallet
You don't need 2 accounts on each. CB for example lets your switch between BTC and BCH wallets under one account.

You just import the private key from the paper into say a "electrum" wallet for the bitcoin. Then transfer the bitcoins out. Then you import the same key into a bcash wallet like "Electron Cash"

https://steemit.com/cryptocurrency/@lukestokes/step-by-step-getting-your-bitcoin-cash-out-of-a-bitcoin-paper-wallet