What exactly you are looking for a management tool or someone who can manage your crypto?

Like the above said it's not safe to give someone permission to access and handle your crypto.

You don't need them actually you can manage your crypto by your self with the help of some tools below.

- Gekko trading bot = OpenSource and 100% free
- Crypto market cap Android app = A tool where you can manage and track your portfolio and get the latest price data of bitcoin and altcoins and many features.
- Blockfolio - Bitcoin and Cryptocurrency Tracker it is likely the same as crypto market cap.

If you have all of this you can manage your crypto trade without the help of other managers/someone. And they are 101% free