Do you have a reason to doubt the security of your old paper wallet and that's the reason you are looking for an alternative? Has someone perhaps seen it or knows where to find it? If it's not that, I wouldn't touch it for the time being. If you decide to move those coins and get a hardware wallet, I would sweep everything to a new address generated on your HW device and after that do whatever I want with them.

Out of curiosity, why do you not want to move the entire UTXO to your hardware wallet and why do you prefer to leave some on the old paper wallet?