Probably the easiest way to find things of Interest to you are search by hashtags then see if the person or group posted recently, Like for #GunRights or #2A
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Second Amendment Foundation
@2AFDN
https://twitter.com/2AFDN" onclick="window.open(this.href);return false;
SAF Jun 5
SAF Files Notice Of Appeal In I-594 Case #2A #RKBA #GunRights http://t.co/eM7O0IijuG" onclick="window.open(this.href);return false;
@nraila @nra ETC ETC
I follow a couple local TV reporters, politicians, some from here, a few relatives and I follow back most people who follow me who are G rated,
I usually get my "news" on Twitter then hear the same stuff later in the day on the TV news
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One I have not followed is
Sen Dianne Feinstein
@SenFeinstein
every time I tried to tweet to her she was too busy to reply because she's always looking at pictures of guns to see which ones looked scariest or something...
(Just Kidding)