What I mean by hybrid is like mélanges like green tea & ginger, green tea & jasmine, etc.
I find they lend a nice upper/downer tonality, like in the previous example I’d go with ginger green tea if I really wanted to focus, and jasmine if I was trying to coax a more relaxed vibe.
Even if it doesn’t count as a hybrid, Genmaicha is fantastic! A nice complement to my pure senchas.