Unfortunately, most of them doesn't fall under the following criterion:
Oh well. I just went with my gut who I think made an effort to create a post and share it, but what the heck. I can do better. One of them was from last year 
I knew it! I was supposed to double-check but didn't have the opportunity to do so so, that's my fault lol. 
@crwth
I forgot to mention in my previous post to update the first post with the new ones [might increase your chances of becoming one (assuming that theymos only checks the first post in such threads)].
- I've seen others have done it before while also adding a "changelog" at the bottom of the main post.
That's a great idea. I might dabble with Rikafip's suggestion and check on finding good posts for the recent months. So that way, even if it's not a topic post, I might have missed out on great posts by members as well. I forgot to mention in my previous post to update the first post with the new ones [might increase your chances of becoming one (assuming that theymos only checks the first post in such threads)].
- I've seen others have done it before while also adding a "changelog" at the bottom of the main post.