Some of the most common Social Media OSINT types, which are available and currently used are :
(Click on the underlined to get more info. about them)
LINKS
Twitter Advanced Search - https://twitter.com/search-advanced
Social Bearing - https://socialbearing.com/
Twitonomy - https://www.twitonomy.com/
Sleeping Time - http://sleepingtime.org/ (**NOT Secure, Though good website)
Mentionmapp - https://mentionmapp.com/
Tweetbeaver - https://tweetbeaver.com/
Spoonbill.io - http://spoonbill.io/ (**NOT Secure, Though a good site)
Tinfoleak - https://tinfoleak.com/
TweetDeck - https://tweetdeck.com/ (Quite Powerful)
Sowdust Github - https://sowdust.github.io/fb-search/ (For Fb)
IntelligenceX Facebook Search - https://intelx.io/tools?tab=facebook
Wopita - https://wopita.com/ (For Instagram)
Code of a Ninja - https://codeofaninja.com/tools/find-instagram-user-id/ (For Instagram)
InstaDP - https://www.instadp.com/ (For Instagram)
ImgInn - https://imginn.com/
Snapchat Maps - https://map.snapchat.com (For Snapchat)