Well let’s start with what is structured data. According to Google,
“Google Search works hard to understand the content of a page. You can help us by providing explicit clues about the meaning of a page to Google by including structured data on the page. Structured data is a standardised format for providing information about a page and classifying the page content; for example, on a recipe page, what are the ingredients, the cooking time and temperature, the calories, and so on.”
Essentially you tell Google what to look for, what the page is about and Google returns those elements as results.
Examples of structured data results –




So essentially all the above results can be achieved with Google structured data.
Now there various kinds of structured data rich snippets, list is below –
Article
A news, sports, or blog article displayed with Top stories carousel and rich result features, such as headline text and larger-than-thumbnail images.

Book
Book actions that enable users to buy the book that they find directly from Search results.

Breadcrumb
Navigation that indicates the page’s position in the site hierarchy.

Carousel
Rich results that display in a sequential list or gallery. Most often, the carousel features articles from a single site (known as a host carousel). The carousel can also feature a variety of publishers, like Top stories. This feature works best when used in combination with one of the following features: Article, Recipe, Course, Restaurant, Movie.

Course
Educational courses that appear in a provider-specific list. Courses can include the course title, provider, and a short description.

Critic review
A snippet from a longer review article that a single editor has created, curated, or compiled for a publisher. Critic reviews can be about Book, Movie, and Local business.

Dataset
Large data sets that appear in Google Dataset Search.

Employer Aggregate Rating
An evaluation of a hiring organization compiled from many users that’s displayed in the job search experience on Google.

Event
An interactive rich result that shows a list of organized events, such as concerts or art festivals, that people may attend at a particular time and place.

Fact Check
A summarized version of a credible site’s evaluation of a claim made by others.

FAQ
A Frequently Asked Question (FAQ) page contains a list of questions and answers pertaining to a particular topic.

How-to
A How-to walks users through a set of steps to successfully complete a task, featuring video, images, and text.

Job Posting
An interactive rich result that allows job seekers to find a job. The job search experience on Google can feature your logo, reviews, ratings, and job details.

Job Training (beta)
An interactive rich result that helps job seekers and prospective students find a job training program.

Local Business
Business details displayed in the Google Knowledge Graph, including open hours, ratings, directions, and actions to book appointments or order items.

Logo
Your organization’s logo in search results and Google Knowledge Graph.

Movie
The movie carousel helps users explore lists of movies on Google Search (for example, “best movies of 2019”). You can provide details about the movies, such as the title of each movie, director information, and images.

Estimated salary
Salary estimate information, such as salary ranges and region-based salary averages for job types, displayed in the job search experience on Google.

Product
Information about a product, including price, availability, and review ratings.

Q&A
Q&A Pages are web pages that contain data in a question and answer format, which is one question followed by its answers.

Recipe
Recipes that display as an individual rich result or part of a host carousel.

Review snippet
A short excerpt of a review or a rating from a review website, usually an average of the combined rating scores from reviewers. A review snippet can be about Book, Recipe, Movie, Product, Software App, and Local business.

Sitelinks Searchbox
A search box that is scoped to your website when it appears as a search result.

Software App (beta)
Information about a software app, including rating information, a description of the app, and a link to the app.

Speakable
Allow search engines and other applications to identify news content to read aloud on Google Assistant-enabled devices using text-to-speech (TTS).

Subscription and paywalled content
Indicate paywalled content on your site to help Google differentiate paywalled content from the practice of cloaking, which violates our guidelines.

Video
Video information in search results, with the option to play the video, specify video segments, and live-stream content.

Great content! Super high-quality! Keep it up! 🙂