radianceLux

>>This Plugin is still in Beta Testing<<
Simply enter your Parler username into the Share to Parler Setting tab and insert the widget where you want the buttons to be located.
This plugin required images hosted on Parler and will not function properly without them. 
https://parler.com/

Share to Parler

Creates a widget for a Follow me on Parler and Share on Parler Buttons

antonpug

This plugin adds a customizable Better Follow Button at bottom right corner of your Jetpack-powered WordPress.org site.
The plugins integrates with the built in subscription manager of the Jetpack Plugin to collect the email of the subscriber and handle distribution of new posts via email.
NOTE: This plugin requires the Jetpack plugin to be installed & activated
For further information visit the plugin website.

Better Follow Button for Jetpack

Adds a floating subscription button (like on WordPress.com sites) to Jetpack-powered WordPress.org sites.

Share to Parler vs Better Follow Button for Jetpack