Matrix, batik, and golden eye I believe are what you'd call co-dominant, meaning that you only need one copy of the gene to express it. So one parent should (in theory) give you some visual offspring and some that do not carry the gene. I am not 100% positive on golden eye, but I'm pretty sure the other two only need one copy of the gene to express the trait.
There are also some high red color-bred lines of blood (cherry bomb, etc.) but again, these would just look like a really nice normal blood, so I'd go with a pattern-based morph like the ones I listed. You might want to post in some of the blood python groups on FB also and ask for advice. Here is a link to a blood / STP specific forum that I believe is run by one of our members that breeds. You may be able to get more specific advice there.
Originally Posted by artgecko
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