Something cheap and easy I've done for years even in my vehicles with a real spare:
Buy a small but quality cigarette-lighter tire pump.
Buy a pack of the old low-tech tire plugs.
Buy a tube of old fashioned rubber cement. It eases the force needed to insert the plug.
Buy (easy to forget) some needle-nose pliers for extrication of the offensive nail or whatever.
My Yamaha 4-wheeler, my Deere lawn tractor and my old CJ Jeep all have plugged tires.
I once had an old sport car that was a nail-magnet for some reason. When I sold it I think 3 of the 4 tires had plugs that had lasted for thousands of miles.
"Experts" will tell you don't use the cheap lazy-man plugs but my experience has shown, quite anecdotally, otherwise.
Heck, I'll take "lucky" over "good" any day of the year!!!
I plug my tires whenever needed, even my 80 psi truck tires. Works well.
I always keep a 12v air pump handy too.
Used rubber cement one time and that plug didn't hold. My uncle swears by it but not me.
I can usually plug them without taking them off.