Quantegy is out of business, so any of their tape you see for sale is old stock with no manufacturer behind it. I would recommend you stay away, for that reason and several others.
RMGI is still supplying, and I would recommend their SM468. It's terrific tape, and it was a current formulation during the years that the Technics was manufactured. I think you'll find one of the settings on your machine that will work well without tweaking.
The ATR magnetics tape is also terrific. I just don't know whether there's one of the settings on your machine that will come close.