There are a several options for accommodation in and around Rochford, and many more in Southend-on-Sea which is an 8 minute train journey from Rochford. Here are a few suggestions ranging in price and location:

The Rochford Hotel, Bradley Way, Rochford, Essex, SS4 1BU (walking distance)

Gleneagles Guesthouse, 5 Clifftown Parade, Southend-on-Sea, SS1 1DP

The Bay Guest House, 187 Eastern Esplanade, Southend-on-Sea, SS1 3AA

Braemar Lodge 481 Victoria Av, Southend-on-Sea SS2 6NL‎ 

Premier Inn, Thanet Grange, Southend-on-Sea, Essex SS2 6GB (near Southend airport)

Travelodge, Chichester Road, Southend-on-Sea, Essex SS1 2JY

You can also search for accommodation using Google Maps - search for Rochford, click "search nearby", type in Hotel, Hostel or Bed and Breakfast.

Other great websites for booking accommodation are:

AirBnb (Cheap rental of room or apartment hire - great for sharing)