Tip of tongue drains into -
Occipital lymph node
Submental lymph node
Deep cervical lymph nodes
Tonsillar lymph nodes
Tip of the tongue drains into submental nodes, anterior 2/3 drains into submandibular nodes, and posterior 1/3 into jugulodigastric nodes.
Finally, all lymphatics drain into juguloomohyoid nodes, also known as lymph nodes of the tongue.