.... well some companies do have tire accounts and let their o/o's to use their discount... Some companies might have Michelin tires under their discount rates check with your company... If you are your company then you already have your answer... but if your asking if there is an o/o app, group, Facebook party, or something like that I would doubt it.... Oh and big tip.... don't buy tires from truck stops, you can find far better deals with separate tire shops (affiliated or non) if you are willing to put in the effort.
GOOD YEAR offers a program for OWNER OPERATORS called Smart Fleet here is the link http://www.goodyeartrucktires.com/smartfleet/
I believe you can do something thru Landstar even if youre not leased with them but are an approved carrier