without knowing your circumstances , it's hard to recommend - read this link
https://turbotax.intuit.com/personal-taxes/online/file-your-own-taxes/
Advantage is just the name of the Auto Renew plan where they charge you each November to get the next year's program as soon as it's released.
For personal returns all the Desktop programs have the same forms. You do get more help in the higher versions. They all have the Forms Mode and can do unlimited returns but only efile 5. The rest you can print and mail. In Deluxe and above you get 1 free state Program Download to prepare returns in that state. If you need another state program you can buy it. Then each state return is $20-25 to efile or you can print and mail state for free.
Turbo Tax is not licensed to prepare returns for a fee. It is for self prepared returns. You can do yours and your family and help others but not as a service.