I have thin oval face, could fillers make my face look wider? (photo)

Hi Richie Vijay, Thanks for posting your query and photo. You look handsome and if you feel you still need to add up volume to your face then Fat graft is a good option. It is a Surgical procedure done under general anaesthesia . I have attached below a picture of the similar complaint for your reference. Best of luck. 

Hi, thank you for your question. Yes, fillers are a non-surgical option to add width and dimension to your face. One of the potential downsides to dermal filler used for this purpose is the cost; It can take 5-6 syringes (or more) to build up the cheekbones and jawline. 

Thank you for your question. From your picture it seems that your best non-surgical option would be Dermal Fillers. Fillers are effective at adding both facial width and dimension by augmenting your cheeks and jawline. Dermal fillers typically last from between 8-12 months before a repeat treatment is needed. In order to build volume around the cheeks and lower face you many need 5 or more syringes of Dermal Filler. This can get quite costly.
Start by seeing a Cosmetic Doctor for a consultation to determine what's possible, product and pricing. Once you have that information you can make a more informed decision about non-surgical vs surgical procedures. 
Best Regards, Dr. Bector