There won't really be any more now until Summer 2016, which are aimed at AS students going for 2017 entry anyway, so I'd really recommend going to some then as well as in Autumn 2016 so you aren't trying to cram them all in at once and you have plenty of time to make a decision. There's nothing to stop you from having a look around and deciding which universities you want to look at and which courses, so you can be more focused with your personal statement and what you are looking into. You could also order some prospectuses, although be aware that these may well change when it comes around to you applying.