I think that MXE has a low profile for negative effects or thats the general word although there is NO research. It is also very very potent for a drug of its type and is reletivley cheap if you get a good source gram for gram. I find MXE is something that you cant really control yourself on, while under the influence of MXE apart from at very low doses I would not say you had any control. If you meant control for re-dosing, re-dosing always seems like a good idea as yourfeeling good and want to take it to the next level but at some point, you'll be hit by the M-Hole and scared for a few days. I found little to no cravings apart from the urge to take this as far as I can.
To sumarise, no drugs that are readily available are as effiecent as MXE seems although again, there is NO research on it that is official in nature. Ketamine is another good one, but there is bladder problems + other issues with long term use. MXE seems to lack these and other long term abuse symptoms of multiple drugs.
I suppose you are in the UK and saw that they may be doing a 12 month ban instantly and want something else, unfortunatley I dont think you will be able to find what your looking for at this moment in time. You could check out the PCP analogues and PCE, do some research mate, I hear promising things