検索してみたので覚書リンク。自分では試してない。
GitHub – jenssegers/laravel-mongodb: A MongoDB based Eloquent model and Query builder for Laravel (Moloquent)
https://github.com/jenssegers/laravel-mongodb
Laravel Migrations with Moloquent and MongoDB (with MySQL still present) | Verron Knowles
http://www.verronknowles.com/laravel-migrations-with-moloquent-and-mongodb-with-mysql-still-present/
Getting Started – Moloquent
https://moloquent.github.io/master/
Getting Started with Laravel 5.4 and MongoDB – Markus Tripp – Medium
https://medium.com/@markustripp/getting-started-with-laravel-5-4-and-mongodb-1ad2892e473f