Standard account and pro account net cost (spread + commission) will be very similar.
For a standard account, the broker will add the commission into the spread and lump the cost as one.
While in a pro account, the broker will separate the commission and spread.
A pro account is more meaningful if you are trading at least 1 standard lot per trade.
For Alom and average use, a standard account is recommended. Refer to this document here on the account type recommended for you.