I just opened a RothIRA account with American Funds. You can go to the website to do some research about this company. It is one of the top three investment company together with fidelity and vanguard.  An agent helped me to fill out the form and select the funds. There is definitely some fee about this account based on the money you contribute. But annul fee is very low. I think fund performance and fee are the most important thing when opening an account.