Temp-to-hire openings around Oklahoma City - any advice?

A staffing agency says some roles convert to permanent after 15 weeks. There are 15 people counting on me, so I am trying to be careful. Hours ramp up in the coming weeks. Which employers treat seasonal workers well?

Apply to several. Start dates and schedules change quickly and having options helps.

Keep a list of supervisors' names. A reference from one of them helped me land my next job.