So far my little adventure into chooks has got me thus far: I bought two hens last year, one is a Bluebell Hybrid type who lays me one small white egg most days (reliably) and a Cream Legbar type who lays me a blue egg (not so reliably) if/when she is not sat around brooding

So, because I am nice like that I gave the CL 6 eggs to hatch the upshot of that was she raised me one stunningRIR Cockerel

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So I am now trying to decide where to go from here

Should I buy the RIR some wives? to give me sellable offspring (I like that idea) so if I choose to do this what breed of hens should I buy? The ideas I had so far was pure bred RIR, or Cuckoo Marams (to get my the Blubell Hybrid) or Light Sussex or cream legbar. What are your thoughts?
My aims are: A, I keep hens for eggs for the house. B, I like the idea of having chooks to sell