Good docs or tutorials for Meteor Mongo

Most of my db experience is with SQL and Rails ORM. I’ve dug into Mongoose a bit and have built out some simple schemas with associations and populate queries, but now trying to connect the dots with Meteor’s implementation, there’s new confusion.

Can anyone recommend a guide for common practices with creating relational data with Meteor’s core Mongo implementation and how to write queries and publications, especially if done from a SQL