I’d strongly suggest the Freeway Switch 3x3 blade switch
I have one in a traditional S/S configured tele, and it opens up tons of new tonal options
it has 6 positions - the 3 standard tele positions, as well as both pickups in series/ in phase, both pickups in series/ out of phase, and both pickups in parallel/out of phase. It’s phenomenal!
I find the in series/ out of phase to be the most useful, and actually approximates a cutting bridge humbucker tone. Also, two singles in series / in phase is dark like a neck humbucker
i haven’t found as good of a use for the parallel / out of phase tone on two single coils, though I use it frequently with humbuckers