It's been my experience that a reed trimmer does terrible things to a reed as it destroys the subtle tapering of the reed tip. If you want a stiffer reed simply use a stiffer reed size.
Alexander Classique reeds are a thicker cut -- as I described on another thread, it's not just having a thicker tip it's having a thicker cut (more "wood") in the heart and vamp that gives one a stronger tonal core. Most reeds that have a thin tip also don't have much wood in the vamp.
Classical type reeds have a thicker cut. Alexander Classique, Gonzales, Vandoren Traditional are the ones that first come to mind. Alexander DC reeds are also good but Classique really "sings". One problem I've heard reported about Hemke is they don't last very long. But, if they work really well for you then have more of them in rotation in a reed case. Then, as one wears out replace it with a new one. Simple solution!
The regular cut Legere reeds I use are thick-cut and are based on the profile of Vandoren Traditional. They have a beautiful, fat, vibrant sound. Whereas, the thinner-cut Legere Studio reeds sound thin and buzzy to me.
Alexander Classique and Gonzales reeds are among the best classical type reeds available. Hard to see how you could go wrong with them.
Roger