The specific wages and benefits are similar, but the atmosphere of each futures company is different. Some let you go out, dead or alive, you can have customers, but you can't live without you.
Some of them are more humane. If you can meet a kind elder, you can learn a lot of trading skills in the futures market.
Therefore, the key is not which futures company. It depends on your leader and supervisor. You can feel it in a few days of internship. Should I take you or pull it by myself? If you feel bad, change to another one.