Free Tools For Social Media Marketing:
For Graphics:
Canva, Adobe Spark Post, PicMonkey
For Photos:
Pixabay, Pexels, Unsplash, Picography
Autoposter:
Buffer, Hootsuite
For Trending Content:
BuzzSumo, Google Trends, Facebook Search
For Analytics:
Google Analytics, In platform analytics
Advance:
SumoMe, Mailchimp, Contact Form 7