Hi, well this is what I think...
I think the Ripple is your best choice

• In many ways, Ripple is like Bitcoin. Ripple’s XRP unit is a digital form of currency based on mathematical formulae and has a limited number of units that can ultimately be mined.
• Ripple doesn’t collect transaction fees the way PayPal, banks and credit cards do. The deduction is meant as to safeguard against the system being swamped by any one individual who might try to put through millions of transactions at once.
• Currently ripple has a low price compared to bitcoin, but crypto specialists are giving it a chance and predict that in less than 3 years 1 Ripple will be around $100.

I honestly believe that ripple is the best option for what you want. Saving for good and future