You are eligible for licensure in 30-something states as someone who went to med school in the US and subsequently completed a year of residency.
FSMB | State Specific Requirements for Initial Medical Licensure has the details
In general though, as a non board-eligible or board certified physician, your job prospects are limited. Yes, you can start a cash-only OMT practice - with or without supervision, since you would have an unrestricted license - but you won't really be able to get most other jobs since you wouldn't be able to contract with most insurance companies.
You're better off trying again to get into a residency - I'm not sure if a path year counts as eligibility for some of the odder ones like Occupational/Preventative Medicine but it's a consideration if it does.