We also use antimony (which was used for eye liner) phosphorus and sometimes aluminum, gallium and indium...
So far I haven’t heard of any arsenic free semiconductor devices, though. When fabricating integrated circuits, the apparatus uses arsine gas, AsH3, which is quite toxic to humans. It is used for P-type semiconductor regions, IIRC. Its outer orbital lacks one of the four electrons that Si has. But when locked into an Si lattice, it accommodates holes nicely. You could even say modern electronics all depend on As holes (duck’n & runn’n!)