i went through the same search a while back and honestly most of the big schedulers do the basics fine, the difference is workflow and how annoying they are to use daily
buffer is probably the easiest if you just want clean scheduling without a million dashboards. later is nice if your content is very visual/instagram-heavy. if you’re handling multiple clients or accounts, people seem to like socialpilot and loomly because they’re less bloated than hootsuite
for reddit specifically, timing matters way more than on other platforms, so dedicated tools like postpone or later for reddit tend to work better than generic schedulers
biggest thing honestly is picking something simple enough that you’ll actually keep using it consistently