* L'Oréal Paris Lash Paradise Mascara: This is a popular, drugstore option that's known for volumizing and lengthening lashes. Given her love for drugstore makeup, it's a probable choice.
* Maybelline Lash Sensational Mascara: Another widely-loved drugstore mascara that provides length, volume, and fanned-out lashes.
Eleanor often does her own makeup, and tends to favor a natural, yet defined look. So, she's likely to use mascaras that provide noticeable definition without being overly clumpy or dramatic. It's worth looking at videos of her doing her makeup for any insights, but she doesn't often mention specific product names.