Keep in mind that the only worthwhile synthetic cannibinoids, that were relatively easy to synthesize as well, are now schedule 1 substances in the US. I hated most of them, especially am-2201, but I really enjoyed JWH-081 and JWH-073. You weren't in over your head from smoking an extra 500mcg, unlike some of the compounds around these days.
Dont get me wrong, I'm not trying to deter you if that's what you want to do, but each new cannibinoid seems to be less enjoyable and a lot more dangerous. Even most of the JWH-xxx class were essentially panicogens (if that is the right term, if not, it at least gets the point across). Inciting rapid panic with minuscule doses.
Maybe you can create a compound that has moderate binding affinity as an agonist for CB1, CB2, and GABAa.
I'll be very interested in what you conjure up. I know we can't really discuss synthesis on BL, but you could always start a thread about your creation with synthetic details redacted. Other BLers have done similar when they designed their own compounds, especially erny's thread about novel NBOH and nBOME phenethylamines. I believe Adder made a similar thread of previously unstudied arylcyclohexylamines, though his results with several compounds are very inconsistent with the results others have gotten once the aforementioned compounds hit the research chemical scene. I believe 3-HO-PCP was the one that his results were pretty far off of what others have experienced from it.
Either way, keep us up to date if you can without getting into synthesis discussion!