I know some of the paper wallets are Bitcoin paperwallet.com, Bitcoin.com Paper wallet and Wallet Generator.net.

Bitcoin paperwallet.com: This will help you print both front and back side.

Bitcoin.com recommends the users to download the source code and generate the seed from an offline laptop.

Wallet Generator.net: This you have to download it from GitHub and open the index.html file from your computer to protect your funds from being stolen.