Check App, Next Door, I found my cat and so did my Step-Mother, a neighbor spotted them and was saved by neighbors! Put your smelly clothes outside where the kitty might smell familiar odors and know where it is, or the cat box, smells its own odor. Post pictures all over neighborhood and keep calling, always hang outside when you can, talk to folks nearby, just don't give up.
Prayers you find your kitty. 🙏❤😻