the regular shiny set list is now basically confirmed to be all galar pokemon (except legendaries) including regional forms and their respective evolution lines as regular cards, plus suicune, rotom, dedenne, cinccino line, swanna line, bunnelby, oranguru
shiny V/Vmax include charizard, charizard vmax, and all the non-legendary V/VMax in the set except crobat which will be a promo (its VMax will be a shiny though)
the last two shiny V cards occupy 2 of the three slots between falinks V and ditto V (the third will be crobat-vmax) so it has to be either be zacian/zamazenta, eternatus and its vmax or two additional dark or steel types that arent in the base set (it's almost impossible for it to be fighting, though theres a slim chance it could be a curveball normal type like meowth and its vmax)
im leaning eternatus V/vmax as zacian/zamazenta will have the gold secret rares but i could see it being something else