NextScripts SNAP - A WordPress plugin that can publish posts to to social networks as nicely formatted messages. Works with profiles, business pages, community pages, groups, etc.
SuperSend.io - Automate Cold Outreach Across Email, Linkedin and Twitter.
Webmention.io - Webmention.io is a hosted service created to easily receive webmentions on any web page.
Twishort - Twishort is a best Twitter app for writing longer tweets. Tweet more than 140 characters
Bridgy - Bridgy pulls comments, likes, and reshares on social networks back to your web site. You can also use it to post to social networks - or comment, like, reshare, or even RSVP - from your own web site. https://brid.gy/
lemlist - Send emails that get replies 💌