Go with a regular version of Word. I wuld hope that is without any bugs.
You can use 365 if you want. I used the trial version of it that came with this new computer, but when I tried to import my copy of Word from another computer things got messed up. I had to delete 365 so I could use Word.
I'm still using 2010 because I don't have any need to pay for another newer version.