You will always be battling them there, I have the same problem here just too many other growers around so they never die year round and they are super mites with massive resistance to everything.
Anyway they just eat neem oil etc for breakfast it's useless people just don't understand there is absolutely ZERO chance of fighting them without the real deal chemicals.
Three viable options:
Floramite SC
Avid
The pest strips specifically mentioned above maybe maybe if your grow is small enough.
You don't have to choose which to use only which you'll start with. If you actually read the directions on floramite and avid they say very clearly that you are supposed to alternate between miticides so that you don't create more and more tolerant bugs that make things even worse in the future...
And now is the future and nobody read the directions and we made resistant mites which could ruin all food crops at some point now... Meaning it's way too late to still have the idea you can be mite free and chemical free. The only way to be mite free where you are now is to not have any plants because you aren't a pro with a sealed grow who can disinfect before he goes in ea time and keep it clean that way. No in a regular home grrow they will always come back in some way, usually on your clothes or dogs or cats or blowing in the wind.
And since you can't use floramite or avid in flower that's where the pest strips come in, and anything else you can come up with that doesn't blow all the trichomes off the plant or melt them off or that doesn't make your bud taste like crap like many things will.
Read the labels and follow all safety precautions you can floramite and avid are not sold to the general consumer for a reason they are the real deal professional chemicals don't be dumb you have to use them but you should use them wisely and properly.
There is no plant they love more than MJ, sorry no houseplant decoy they'll go for... Yes some do leave a sacrificial plant but it makes no sense if you are using the chemicals you're just making sure they always come back fast if you give them a save haven plant.
Your airbrush method or bristle brush may get you that week to harvest but it won't help next run, next run they'll have the jump on you.