Fuel stabilizer in most cases will help negate the Alcohol damage and help injectors and other bits.
Marvel Mystery oil also helps keep fuel systems protected.
Do fill the tank full and then use premium as octane can fall over time and it will help keep the level up.
You can park on high density foam to help with flat spots.
Use a good quality cover if you have hood paint.
I use a tender and what is called a Wizzvent. It comes on with high humidity and vents air out of the garage. It circulates the air to to keep humidity down.
I also insulated and sealed the garage well. This saves on the heating bill and in the summer it is cooler than the outside too.
As for traps they are all more human than I would be if I ever caught one eating my seats or wires lol!
Oh if you can start and run the car once a month if you can do so with the garage door open. I know most of you know to open the door but there is always one in ever crowd. Lol!