I recommend that you set up a new email account just for SafeLists and create a filter so that emails from each SafeList you join go to a designated folder - this will help you keep the emails organised and save you time.
Elite Safelist is another effective safelist. Free members can email all members once a day and get 2000 credits for signing up. There is a forum where you can learn from others and video tutorials worth watching.
Free SafeList 101 is one of the best safelists. As a free member you get 5000 signup creidts and can email once a day. There are plenty of free resources to use and a 'Dino Daily Bonus'. You even get $10 into your account just for signing up!
If you want to join more Safelists check these out below.