When you find a package to use, simply "npm install" it then include the import at the top of your component file to begin.
Here are 5 packages that helped me build my project with ease:
1) Moment - "react-moment"
Moment made gave me a simple way to parse dates from an API into the format that I wanted to display to the user. There are multiple options for props and filters depending on your needs.
2) Loader - "react-loader-spinner"
Loader gave my user something simple but interesting to look at for a few seconds while they waited for the API fetch to complete. You can customize the look and duration of the loader component to fit your style.
3) ReactCalendar - "react-calendar"
The calendar was a nice addition as a clean and styled way to present dates to my user with the capability of incorporating date selection. There are many available props to create an interactive calendar.
4) Map, GoogleApiWrapper, Marker - "google-maps-react"
This one requires an extra step because you'll need to create an account for a Google API key, but it only took a few minutes. Once you're in you can begin customizing the the the size and zoom of the map along with any markers for specific places.
5) YouTube - "@u-wave/react-youtube"
For more npm packages, visit npmjs.com.