Gif-sur-Yvette city center, 10 min bus ride to LSCE :

https://www.hotellevillage.fr/

Gif-sur-Yvette, "work in progress" Paris-Saclay neighborhood, 20 min walk to LSCE:

https://www.campanile.com/fr/hotels/campanile-paris-saclay

Bures-sur-Yvette, 35 min walk to LSCE:

https://www.residhome.com/residence-hoteliere-aparthotel-buressuryvette-183.html