You don't need to pay a broker, banker, or advisor to get started. You don't even need to research any stocks.
Open an account with Fidelity and put $200 in the Fidelity 500 Index fund (FXAIX). There is no minimum initial investment and fees are a very modest 0.02% a year which works out to $0.20 per $1,000 per year. You can deposit $200 each month with no transaction fees.
Why This Fund?
Lets divide all of the risks investors face into two buckets -- market risks, and company risks.
Market risks are everything that a company has no control over such as monetary and fiscal policy. Company risks are everything that a company can do that affects its stock price such as launching a new product or reducing costs that has little impact on other companies.
When you invest in an index fund like this one, you own so many stocks that you are effectively insulated from company risk. Since you don't have to research any stocks, this plan will not take much of your time. Your return depends on how well the economy does and not on whether any company succeeds.
By investing in this fund, you protect yourself from a whole category of risk while benefiting from the growth of the economy at almost no cost. This is a good deal!
Becoming A Millionaire
According to the Securities and Exchange Commission's compound interest calculator if you do this for 40 years you will have invested a total of $96,200 which will be worth $1,071,274 assuming the stock market performs pretty much the same as it has over the long-term. Sticking with this investment plan will probably make you a millionaire.
Compounding is the miracle force of nature that enables everyone to become wealthy within their lifetime. The sooner you start investing, the sooner this miracle starts working for you.
Finding $200 a Month
The first place I suggest you look is your employer's retirement plan options. Many employers will match your contribution so you may only have to contribute $100 a month towards becoming a millionaire.
I used to spend $100 a month to buy coffee each morning on my way to work. When I realized this money, when matched with my employer's 401k plan, could make me a millionaire, I started making my own coffee. It was a painless way to start down the road to financial freedom so I would not have to work my whole life. I figured that if becoming wealthy was less important than having a daily cup of premium priced coffee, I would never become wealthy.
This does not mean you have to stay with your current employer for the next 40 years. When you change jobs, you can take your retirement account with you.
Stick with this plan at least until your portfolio has grown to $20,000. At that point, there are other investing approaches worth your consideration.
Note: I have no affiliation with Fidelity other than being a satisfied customer.