Hey Adam!
I think you had a good hunch with capitol hill as far as appreciation. You'd be in for the long run and would be taking a lot of risks, so I agree with you that for a first investment, I wouldn't. Honestly, I wouldn't suggest the BRRR method in OKC for a first deal either. It's just a riskier route for a first-time investment. Generally, I don't suggest the BRRR method here right now anyway, just because our market isn't that distressed, but that's a whole different can of worms.
I suggest starting a property that's already cash flowing. That way you can have normal inspections and request the seller address any issues, which keeps more cash in your pocket! With a tenant already in place, you can have peace of mind as far as what you'll get for rent and what your returns will look like before you invest anything at all.
I see the very best rates of return in our C class areas, especially Midwest and Del City. But, if you're wanting to do something a/b class you can get something that'll cash flow just a little less if you look north of I44 and west of I 235.