Total WP Reviews

This plugin will display your Google My Business and Facebook reviews trust badges on your WordPress websites in fixed position part of your theme widgets (check screenshots) or floating left or right.
Online Demo: https://www.shounakgupte.com

Features:

• Always Free
• Easy to install
• Fixed position or floating left or right
• Display total number of reviews
• Open links in new window
• Nofollow link to your Google My Business listing and Facebook page
• Auto fetch data from Google and Facebook
• Supports shortcode

Future features:

• Rich snippet support
• Write a review button
• Information storing in database
• Review sliders
• Minimum review ratings filter

Shortcode:

Facebook Page Reviews : [facebook_badge page_id=”Facebook Page ID” page_name=”Facebook Page Name”]
Google Places Reviews : [google_badge place_id=”Google Place ID” place_name=”Goo

NOTE: Go to Settings -> Total Reviews -> Shortcode Helper for more information