Hey @Wallace Zhen, excited you're looking to invest in Oklahoma City.
1. I host a bi-weekly zoom call on Wednesdays at 1pm for OKC real estate investors. I'd love for you to join. DM me for the link. Next call is Nov. 4.
2. With your budget and goals, I'd look at newer construction (2000 or newer) in the Yukon/Deer Creek/Mustang school zones. I just rented a home in Yukon schools for $1600/month. Low turnover for families with kids and school and you typically attract better tenants with newer construction and high rents. These deals can be hard to find but if your goal is some cash flower and minimal headache, that might be a good route.
3. Homes in Oklahoma City schools aren't as in demand from owner occupied buyers. But you can still command good rents and quality tenants. I'd look at communities on the fringes of suburban school districts for homes built 1980+ that are 3/2. You can land those in your budget and enjoy some cash flow.