If you are taking about social media, I would do one post per day since the post would not be that long. These days you can write post and use that post on different social media places. This make things easier and faster. Now you can schedule out your post so you can write them all out now or saved them as a draft to post later.
If you are taking about a blog, than you should follow a schedule that fits you and you can keep up with. You don’t have to do a blog post per day but the more content that you post, the traffic you will get but I think it’s important to have a posting schedule.
So you don’t need to post everyday but the more content you post is better. I would spend less time posting on social media and I post more your blog. I would say 3 blog post is good and with WordPress you can write all 3 post at one time and use the WordPress time stamp to schedule out the post. Keep in mind that yes more content is better but write what you can.
