Recently a new paper was published by Giorgio Vassallo and Andras Kovacs titled “The Proton and Occam’s Razor” in which the authors present a new model of the proton.
They propose the proton as in terms of geometric and electromagnetic concepts, and propose that it is a spherical shaped charge with an anapole (toroidal) magnetic moment. This is in contrast to the commonly accepted quark model.
https://www.researchgate.net/publication/370848758_The_Proton_and_Occam’s_Razor