Hey Jerry - Tulsa and OKC are both booming markets and ones that drive the most demand in Oklahoma. My piece of advice would be to research emerging neighborhoods and focus on areas with strong job growth and infrastructure development. This will help narrow down your search and making sure you find the best deal!
Ive been 10 years in. OKC has alot of opportunity mainly because of its low level of enforcement of housing codes, strong landlord laws and conservative judges in eviction court. Its dirty but its fun. If you like impacting the nation by providing affordable housing you can really put people in houses here. Thats why i wake up each day excited about working rentals here. No day is the same.