I am not a phone user, but I believe Partiko is good. Try that and see how it compares with eSteem.
Again I haven't used it but would Share2Steem be any using for sharing content between platforms?
Accessibility should be baked in, but I fear it isn't.
And curation is a must. But even the best curators are paddling in little boats against gigantic waves of 'less valuable content'...