some main data structures

 

stacks, hash maps, linked list, queues, trees, heaps, tries and graphs

stack

https://www.geeksforgeeks.org/stack-data-structure/

hash maps

https://www.geeksforgeeks.org/hash-map-in-python/

linked list

https://www.geeksforgeeks.org/linked-list-set-1-introduction/

queue

https://www.geeksforgeeks.org/queue-in-python/

tree

https://www.geeksforgeeks.org/binary-tree-data-structure/

heaps

https://www.geeksforgeeks.org/min-heap-in-python/

tries

https://www.geeksforgeeks.org/trie-insert-and-search/

graphs

https://www.geeksforgeeks.org/graph-data-structure-and-algorithms/