I have a goty (french cut beard) but have very little hair on my cheeks. Is it permissible to shave the cheeks just to get better hair grown next time?

Will this be considered haram even though I have beard as french but just shave the left and right cheek to get better hair?

You can refer to Sheikh Mohammad Ishaq Al-Fayadh in shaving the cheeks, as it is a precaution according to S. Sistani.