Well for new players if recommend these things...
1. An organized chest room
2. Fishing posts at your beach
3. Floating houses away from enemies
4. An armory (optional just for fun)
5. A boss arena for bosses in the future
6. House defense. Ex: dart traps and lava traps that surround your house
7. Bridges to navigate worlds
8. Organized base
9.Npc hotel (optional)
10. To top things off a music room (optional)
If you got some questions feel free to ask me. I love this game and this stuff got me far in the game