There have been numerous threads discussing this very same topic.
I believe this is the most recent:
https://forums.macrumors.com/threads/1138279/
With that said, I was using Tweetlist Pro since I really love that app. However, I'm currently back to using the official Twitter app since Tweetlist has developed some bugs within the app. If you want to check it out, they have a free (ad supported) version. Also, Tweetbot seems to be quite popular these days. However, I'm not a huge fan of it (yet).