The thing is without blood tests there's no way to tell which works best if at all. I can tell you Fenugreek with Maca has definitely given me a boost in energy and libido, a noticable increase in ejaculate. Doesn't necessarily translate to a higher testosterone level.
Some things you left out that definitely work: SERMs and AIs. Rebound XT is a good AI for raising test levels, so is Ultra Hot, both of which use a similar active. Lots of good feedback has been given on ActivaTe by Designer Supplements too. Supposedly a SHBG binder that binds with a much higher affinity to SHBG than test, leaving more free testosterone in your system. Thing is this could actually lead to a decrease in overall test levels even with an increase in free testosterone. Still, I gave the beta version a try and my subjective experience was that it worked, and worked much better than anything 'natural' I have ever used.