Looking For The Reliable Data Set For Representation Learning For The Large Scale Dynamic Network

Hi I am now doing the project associated with use the representation learning for the large scale dynamic network. And my work now is based on the reddit data set. I am trying to find the data set which include the time series stamps, making the user as the node of the graph, I can build the edge for the different nodes.

I have tried some source, but these data did not meet my requirement in some places:

https://snap.stanford.edu/graphsage/ ( the node is not user)

https://github.com/dingidng/reddit-dataset ( can only build very few edges)

And I am confused how can I get the access to use the reddit data set with the pushshift, since I was rejected by the bot for many times. And how can I use the data set in the pushshift platform. If anyone can help me find the reliable and useful data source, thank you so much!

Thank you in advance for any help and suggestions.