For a large quantity:
* Beaucoup: This is the most common and general translation. It means "a lot" or "many."
* Un tas: This literally means "a pile" and implies a large and somewhat disorganized quantity.
* Une tonne: This literally means "a ton" and emphasizes a very large amount.
For a specific amount:
* Des tonnes: This means "tons of" and indicates a very large quantity.
* Des tas: This means "piles of" and suggests a large and perhaps messy amount.
For a metaphorical sense:
* Un paquet: This means "a lot" in a more informal sense.
* Pleins: This means "full of" and can be used to say "loads of" something.
Examples:
* J'ai beaucoup de travail à faire. (I have a lot of work to do.)
* Il y a un tas de livres sur la table. (There are piles of books on the table.)
* Il y a une tonne de choses à voir à Paris. (There are tons of things to see in Paris.)
* J'ai des tonnes de devoirs. (I have tons of homework.)
* J'ai un paquet de choses à faire. (I have a lot of things to do.)
The best way to say "loads" in French depends on the specific context and the nuance you want to convey.