Here are some other options depending on the context:
* Rire bêtement: Literally "to laugh stupidly", used for silly or nervous giggling.
* Rire sous cape: "To laugh under the cloak", indicating a quiet, secret giggle.
* Rire nerveusement: "To laugh nervously", for a giggle stemming from anxiety or embarrassment.
* Pouffer de rire: "To burst out laughing", implying a loud and uncontrollable giggle.
Remember, the best word to use will depend on the specific type of giggle you want to describe.