Like with the Mennonites, Quaker "churches" may not be apart of any national conference or denomination and as such accurate estimates are hard make. Listed below are the conferences/denominations that do have a nation presence.
Evangelical Friends Church, International: Founded in 1989 membership is estimated to be around 94,960 across 235 meetings (2020).
Friends General Conference: Founded in 1900, membership is estimated to be around 27,722 across 374 meetings (2020).
Friends United Meeting: Founded in 1902, membership is estimated to be around 14,138 across 186 meetings (2020).
There is no official bible for these denominations, but different churches may prefer one translation over another.
Holy Bible : Containing the Old and New Testaments: Authorized King James Version