Twitterfall - Twitterfall is an excellent choice if you want something basic, free and without much branding.

Walls.io - Walls.io is an all-in-one social wall solution that allows you to collect, curate, and display content in an easy-to-customize feed. You can collect content from multiple social media platforms or let your audience post content directly on your wall.

Flightly - The must have mobile app for anyone advertising on Twitter.

Stackla - Social content marketing platform

Fenice - Read writing from Fenice for Windows on Medium. Fenice (fka Project Blue Dog) is a full-featured Twitter app for Windows designed to offer the best Twitter experience to every user (pro or casual ones).

Curator.io - Curator is a brandable social media aggregator.