Hello,
Right now am running at 100 entities. am planning for 10 000 entities. What is the solution for storing them if not arrays ?
This also depends on how the data needs to be accessed.
If you need sequential access a linked list will be fine.
However, if you need to search for specific data other data structures are much better (eg. binary trees).
I have written scripts for doubly linked lists and AVL-trees, but commentation and documentation is german only.