Same I've played all variants but don't have achievements for it.
Some achievements that don't work for me

Hindsight 20/20:
Drills:
There are several achievements which are not currently working. If you contact help/support, I think they would unlock the achievement if you satisfied the requirements. See link.
Contact Us - Chess.com Member Support and FAQs
Organizer: This achievement applies to daily tournaments only.
First!: You must be the first to post in the puzzle's comments.

What does that mean and where do I find it

What does that mean and where do I find it
Get to daily puzzle through website, and you will find it.

What does that mean and where do I find it
Get to daily puzzle through website, and you will find it.
Wrong, you need to go to the app. To comment on a daily puzzle there, you need to first go to the forums.
Yep, you have to go to the app

I have been trying to get these achievements but they aren't working. If anyone has any suggestions, please tell me.
1. Hindsight 20/20: I have analyzed and saved more than ten games but I didn't get this achievement. Somehow I got the Second Opinion achievement.
2.Silicon Brain: I have attempted all drills on my phone and on the website but I didn't get it.
3. Organizer: I directed a swiss tournament for my club and it had 4 people playing in it but it didn't give me the achievement.
4.Social Butterfly:I just don't have enough friends so if you could, please friend me.
5.First!: I have commented on many daily puzzles but I didn't get this achievement.
I don't have hindsight 20/20 either, even though I have analyzed more then 30 games, I think this one is broken
I have been trying to get these achievements but they aren't working. If anyone has any suggestions, please tell me.
1. Hindsight 20/20: I have analyzed and saved more than ten games but I didn't get this achievement. Somehow I got the Second Opinion achievement.
2.Silicon Brain: I have attempted all drills on my phone and on the website but I didn't get it.
3. Organizer: I directed a swiss tournament for my club and it had 4 people playing in it but it didn't give me the achievement.
4.Social Butterfly:I just don't have enough friends so if you could, please friend me.
5.First!: I have commented on many daily puzzles but I didn't get this achievement.