>First they came for the Prankster Users, and I did not speak out
>Then they came for Talonflame, and I did not speak out
>Then they came for Gengar, and I did not speak out
>Then they came for me (and my Parental Bond)—and there was no one left to speak for me.

From consistently being top 3 in usage in Gen 6, to barely hanging on to a place in the top 30 in Gen 7. How the mighty have fallen.

In all seriousness though, here's the rest of the top 50 most used mons if people are interested.

#31 - Cresselia
#32 - Primarina
#33 - Tyranitar
#34 - Tapu Bulu
#35 - Scizor
#36 - Rotom-Heat
#37 - Serperior
#38 - Nihilego
#39 - Rotom-Wash
#40 - Toxapex
#41 - Hydreigon
#42 - Azumarill
#43 - Magnezone
#44 - Slowbro
#45 - Skarmory
#46 - Chansey
#47 - Kartana
#48 - Muk-Alola
#49 - Zapdos
#50 - Suicune

https://boe2.github.io/bsus.html

If you want to see more, just go to the above link.