Transfer contract with fees

[gsx]

maybe you can study Reflect.Finance or Safemoon smart contract. theyre charging fee at transfer.

and consider this before you create erc20:

Points to consider when creating a fungible token (ERC20, ERC777)

If you are thinking about creating a fungible token (ERC20, ERC777), you may want to consider the following points: What is the purpose of the token? Why would someone need to use the token? Could the solution operate without a token? Could the solution operate using either the native currency of the blockchain (Ether) or an existing stable token instead of the token? Could the solution be cloned and have the token removed, yet still operate (without the token)? How does transaction fees (gas …