Sun ships ranked by how overprotective Old Moon would get if he was jumpscared by Sun getting with them while he was dead (For any character that isn't present or alive at this time in cannon, just assume its an AU where this can be possible)
SolarSun: Starts of hella overprotective, but the second he realizes it's that Eclipse he cools down. He would cool down even more if he watched the channel and saw how he and "New Moon" were. He'd obviously give Solar the shovel talk, but after a month the only thing Moon would comment on is that he was right about Sun being bi, and you better believe he is never gonna let Sun live it down. Overall a nasty surprise at first but he chills out really quick and is generally very supportive. This is probably the only one on this list Moon would actually be completely fine with (eventually)
Sun x Taurus: Moon would be laughing his ass off over the comedically large size difference if he wasn't metaphorically shitting his pants. That was certainly an introduction to the Astrals. If anything, Taurus gives Moon the shovel talk. At first Moon might be worried that Sun is getting forced into this (because Sun probably doesn't have that much power to resist) and offer to move to a different dimension if he is, but Sun is addiment that he's here of his own free will. So that's that! Moon does not need to medal with his scary ass brother-in-law any more then he already as to.
BloodySun: Ex-fucking-cuse me? While Bloodmoon is scary and dangerous, he is not on the same level as Taurus, which means he can catch these hands. If the twins are anything less then saints to Sun, Moon won't hesitate (bitch/ref).
I love how it's not specified who's dying in Sunchips. Wonderful.