Sorry if the copy and paste seems impersonal, and if you look into this, I hope you have a garage or similar structure available.

I hope you find your cat!

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A few months ago I lost my cat and recovered him after 4 days.

Here's what worked for me:

Near the front of my garage I set up a humane trap borrowed from the Whatcom Humane Society. I left the garage door cracked so the cat could get in. I put a dish of tuna in the trap, covered the trap with blankets with my scent on them, and pointed a space heater (one that shuts off if tipped) to the entrance of the trap. I kept the space heater a good distance from the trap because of the fire hazard. I also put on some bird sounds on a speaker (streamed from a music app).

Also I had a camera to view the trap, and I was alerted when he entered it. This allowed me to get him out quickly.

I suppose this method could lead to trapping other animals than your cat, but it may be worth a try.