Looking cool widgets and plugins for new WP Blog

[Gitnmesumcash]

Hey everyone I finally moved to a multi-niche WP site..

I have a cool theme, the orizon theme. Doing a gaming niche thing. Looking for cool plugins and widgets to add. What do you all recommend? Also looking to rank this too..

Looking to also add fake random comments related to my niche when the user loads it up. Is there a plugin for that?

So far I have
- yoast seo plugin
- google xml sitemaps
- adding SNAP so I can post to twitter, my fb fan page, tumblr and maybe a blogspot.

What do ya think I should add? Thanks!