Hootsuite , app and tailwind app these are great scheduling apps. They help organise the outreach process including scheduling,commenting, building engagement.
Things I'd recommend.
Like other people's posts back. Comment and show genuine interest and insight, provide resources where you can, the Google algorithm and their algorithms will rank you higher. The more you show your an active member of the community the more you get seen. Show up to stay up. It's that thing where you go to church and all the regular church goers get special treatment,because their active participants, or the teachers pet at school is always getting out forward for stuff and getting extra credit, because he's doing extra stuff. Algorithm likes busy on any platform . Content is always king. Yet you must research the algorithm, know keywords, SEO, and research all the best ways to rank higher in the search engines. The higher you rank, the more you'll be seen, the more profile you'll get, the more profile, the more revenue.