Thank you Gaurav very much for your reply.
The liquidity is the money in the pair.
Here is an open API call with a list of Pancakeswap top 1000 pairs by liquidity:
https://api.pancakeswap.info/api/pairs
Now, how would you go about requesting that info for all 1000 tokens?
Could it be done all at once, like adding them to a pool and making a request for all?