What GoDaddy already does for reviews
GoDaddy's builder has a reviews section that pulls from your Google Business Profile. For a single-location business showing only Google, that may genuinely be enough.
If that covers what you need, use it. This is for the case where your reviews are spread across platforms your site cannot see.
The one thing to know about GoDaddy
The builder restricts where custom code can go, so a widget lands in an HTML section rather than wherever you like. Floating layouts are the practical answer if you want it somewhere the section cannot reach.
Where reviews belong in a GoDaddy site
An HTML section in the page editor. Floating badges are set in the widget and appear over the page regardless.
Full-width sections suit carousel and grid layouts; sidebars and narrow columns suit a badge. Floating badges can be restricted to particular pages and to desktop or mobile.
Reviews and search results
The widget outputs review schema markup automatically. Whether Google shows a star rating depends on what the reviews are attached to — worth reading before you expect stars, because for a business reviewing itself the answer is usually no.
What does help either way: reviews on the page are content, and a page that answers what customers actually say is a page people stay on.