I still think TDAmeritrade is going to be better with the cash bonus. Robinhood is a no-commission fee brokerage that will give you free stock (valued $5 – $200) when you open an account and link a bank account. There are no other requirements of the offer, you just need to open an account. Betterment has a new account offer when you open a new account and make a deposit, you can earn up to $1,000 as a bonus depending…