Took a quick look, some of my favorite maduros:
WOAM, Best Seller Maduro
1926 No. 9 Maduro, Family Reserve 85 Maduro
Anejo "77" Shark, 46
Oliva Serie V Melanio Maduro Torp or Robusto
GoF Serie B GT
LG Small Batch No. 4 Oscuro
OpusX ForbiddenX Maduro Toro (strong)
LFD Mysterio Oscuro
LFD DL Chisel Maduro (strong)
Padilla Reserva Maduro Corona
RoMaCraft CroMagnon Mode 5, Neanderthal
Viaje Platino Samurai Maduro
Tatuaje TAA 2014
Illsuione HL Maduro
Drew Estate Undercrown Robusto

And on, and on, and on...There are probably quite a few more that employ a maduro like process...

Some of those are going to be harder to track down than others but that should help get you moving in the right direction.