give me some goals to aim for in a Minecraft survival world
Sure, here are some goals to aim for in a Minecraft Survival World:

1.  Killing the Enderdragon

2.  Getting all achievements

3.  Working on a building project

4.  Crafting a full netherite armor

5.  Surviving for a certain time
what are the most fun achievements I can aim to get in minecraft?
From basic crafting and farming to exploration, there are 122 archivements in minecraft. Depending of your gamestyle mincraft has something for you to find. 

1. Super Sonic
2. How do we get here
3. The End
4. The Beginning
5 Return to Sender
6. The End...Again...