What are my options to feminize my jawline? Masseter Botox?

I think my face looks okay from the front, but I am bothered how masculine my jaw looks from the side - first photo shows my original jaw and my goal. I know there is v-line jaw surgery but I think it is too invasive at the moment, would I be a good candidate for masseter botox or perhaps the effect could be replicated with fillers? Thank you for any advice.