Why aren't Boron and Aluminium assigned to group 3 of periodic table? What determines the group?
Back in 1933, John Drury Clark published 1 his "race track" periodic table that subsequently became famous as the cover of Life magazine in 1949:



Looks like B and Al are nicely positioned. Just need to add an outer track for elements 105 - 118, element names and symbols for elements 97 - 103 and element 41 is niobium, Nb.

1 Clark, John D. (November 1933). "A new periodic chart". Journal of Chemical Education. 10 (11): 675–677. Bibcode:1933JChEd..10..675C. doi:10.1021/ed010p675.

Clark is also the author of Ignition! An Informal History of Liquid Rocket Propellants, Rutgers University Press Classics, New Brunswick, NJ, ©1972 and 2017.