A Guide On Laravel Relationships

https://medium.com/swlh/a-guide-on-laravel-relationships-1febfac430f6
Basic guide on laravel relationships.

10 Eloquent Features That You Might Not Know About

https://medium.com/swlh/10-eloquent-features-that-you-might-not-know-about-75d8221d4adc
some very nice methods.

7 things you need to know to get the most out of your Laravel Model

https://itnext.io/7-things-you-need-to-know-to-get-the-most-out-of-your-laravel-model-4f915acbb47c
Fairly basic stuff here. 

Using PHP Traits for Laravel Eloquent Relationships

https://medium.com/@tomgrohl/using-php-traits-for-laravel-eloquent-relationships-7357901a01a4
Using Traits with Eloquent.

Proper way to use Laravel Eloquent

https://medium.com/@mantasd/proper-way-to-use-laravel-eloquent-3ca194e2b766
Ways to use Eloquent in Laravel. The 3rd is the usual.

Leverage Eloquent To Prepare Your URLs

https://laravel-news.com/leverage-eloquent-to-prepare-your-urls 
One generally doesn't think of Eloquent having anything to do with routing, but...

Mapping Form Request to Eloquent

https://hackernoon.com/mapping-form-request-to-eloquent-6eb30ee9eb7d
A package to take form POSTs and convert them into something eloquent will like.

20 Laravel Eloquent Tips and Tricks

https://laravel-news.com/eloquent-tips-tricks
Some nice shortcuts that eloquent allows.

Eloquent Relationships Cheat Sheet

https://hackernoon.com/eloquent-relationships-cheat-sheet-5155498c209
Eloquent ORM relationships illustrated and implemented. 

Welcome to the Eloquent by Example Course!

http://eloquentbyexample.com/course
New, free course on Laravel's eloquent ORM layer.