yeah i think either one fish and come community fish or a sorority and no community fish would work best.. also dividing is good. just make sure the divider had no holes and they can't jump over the top
i personally really like my single betta with 4 corries, but that's personal preference :D
also sororities take a TON of work, i wanted to start one but i'm gone alot and wouldn't be able to supervise them, i also don't want to buy all the extra tanks in case i end up having a couple misfits or bullies
"Just don't tell 'em I've gone crazy, that I'm still strung out over you..."