I just read this post while I was searching for good posts, I totally agree with you. The biggest reason why I (and probably the most here on Steemit) don't upvote a lot of posts recently, is because it takes so much time and effort to find good posts that are really worth an upvote. Time that I don't always have unfortunately.
I think it's definitely a good idea if we just start to share (on a regular base) good posts that we find with our friends, it would save us all a lot of time and other people would have a chance to be seen.
You should check out c-squared.
https://discord.gg/B8JFmJ4
It's like a curation discord group.
They resteem the approved and upvoted posts to @c-squared as well.
Since following them, I've found it a bit easier to find posts to upvote. Still sometimes difficult, but not quite as much so.
Sounds like it's worth a try! Thanks