Minato's Ftg might be useful. Heavenly foot of pain, Everything in Heaven Attraction(Bansho Tenin), Eighty Gods Vacuum Technique, Danzo Baku( A spiritual being) + Vacuum fuuton (MS susanoo), Revolving Heaven(MS Susanoo), Shinsuusenju, Golem Soul( Only works on MS Susanoo), Shinra Tensei( MS susanoo), Chibaku Tensei(MS Susanoo), Mei's boil release vapour(MS Susanoo), Kibaku fuda(MS Susanoo), Kekkei genkai attacks (MS susanoo, doesnt work on EMS Susanoo; unless amped with soul oriented chakra like Tsunade's).
These are the examples of attacks which would work against Ems Susanoo and Ms Susanoo respectively.
Misconcepted Useless attacks in reality :-
A) Kamui(Unless rikudo enhanced Kamui).
B) Ftg on EMS Susanoo(Unless on KCM, BSM or BM mode).
C) Deidara mass bombs( Works mediocrely on MS Susanoo, Doesnt work at all on EMS Susanoo)
D) Gentle fist.
E) Trigram palms. (Except revolving heaven works on MS Susanoo alone)
F) Physical attacks = Garbage as in tools, clutches, grappling, poking.
G) Bijuudama.( Sage mode Bijuudama is a different case).
H) Sage mode( can bypass it to attack the susanoo user).
I) Temari fuuton
J) Rasen-shuriken
K) Elemental attacks utterly useless.
Susanoo doesnt have a down side weakness as its fallaciously misconcepted in this community. The only reason gaara bypassed the down area was because it was infused with onoki's kekujin technique. The "jin" in kekujin means spirit. The sand bypassed Susanoo foothold by being poured with spirit technique.