I can try to get some beamshots of the GT Mini , Emisar D1S and the Maxtoch M1 Archer side by side in the next night or 2 for comparisons. (my full review on the M1 HERE)
I have not had those 3 out together for a good while to remember for sure , but if I am remembering right , the M1 Archer will do a little better than the D1S and the GT mini both.
If you don’t mind a little larger tube (single 26650) and head , the Thrunite Catapult V6 would be another good choice. It is not what you would want to carry in your pants pocket , but not bad in a jacket pocket. My full review on the Catapult V6 HERE )