A high yielding autoflower will take just asl long as a normal plant. I grew a think different, i wasnt even large yielding like it was supposed to be, under 600W HPS with advanced nutes, i got 2 zips. took 102 days and it could have went longer.
Just plant any good quality auto in a large pot, give it good fertilizer, not too much tho, and LST it, dont top it. In soil, your probly gonna top out any auto at 2 zips just because an auto is time dependant and soil is slower (i grow in soil), hydro is much faster and will yield much more than soil.
I tried lots of autos, now i just use them in small pots to fill spaces, i use them to try out new strains cuz you can jsut kidna put them wherever there is some light
check out my pink kush from reeferman, it vegged for 3 weeks and has been flowering for 8.5 weeks, picking it at 9 weeks. Should yield 2+ oz easy
https://www.rollitup.org/general-marijuana-growing/800382-gorgeous-reeferman-pink-kush-plant.html