fldevopsart

This plugin offers the following admin features: 
* “Customize UI” allows to customize the channel-bar position and orientation. 
* “Channel WhatsApp” – create a whatsapp channel. 
* “Channel Phone” – create a phone channel. 
* “Channel Email” – create an email channel.

Wp Contact Me

This plugin create several channels (phone, whatsapp, email) between you and your users. Use this channels to improve the user's experiences.

UjW0L

This plugin lets you to display Youtube widget on sidebar with the themes that supports sidebar and Footer
It displays video and playlist of your choice with video id and playlist id. 
It also lets you display all videos from you youtube channel with option to navigate to next nd previous button. 
No google API key needed. Uses Youtube rss feed.
You have choice between single video , playlist and channel.
Note:

Simple Youtube Widget

Plugin that provides users option to display Youtube Widget on the Sidebar or Footer

Wp Contact Me vs Simple Youtube Widget