The best alternatives to The Red Line are Call To Action, 5 Calls, and Call Your Rep. If these 3 options don't work for you, we've listed a few more alternatives below.
Involved is a micro-polling software for local government, allowing representatives to post one-question surveys and aggregate private opinions from verified constituents. As a constituent, you can receive these polls via e-mail or push notification, and respond in one click.
Polliticly uses community sourced polling and seamless elected official messaging in effort to improve civic engagement and give people influence in local legislation.