Order, filter and then reorder a model query on Laravel 5.2

I've been seaching this for hours without success.

I have a products table and I need to take N random products from a list (of 100, from example) of best seller/top rated/most viewed products.

Using raw queries this seems to be trivial. First we take 100 high valorated products, then we reorder and finally take 3 of them.

select * from (select * from `products` order by `valoration` desc limit 100) as products order by RAND() limit 3;

This can be done using DB:table, but I need to do the same query not using raw queries. This is because my Product model has many custom methods and DB:table returns a list of stdObjects instead of a collection of Product models.

How can this be done without raw queries?

Thanks.

via Chebli Mohamed