If you solo well you will never be alone when you are out in a club. I like to build up around at least 10-20 people I've had positive interactions with (men and women) regardless of if I'm alone that I can fall back on when I'm floating around the club doing my thing.
Chat to people in the smoking area and find temporary wingmen, there's always drunk social guys choding about who are happy have a temporary wingman.
Most importantly smile and have fun. If you don't do this you'll look like the weird guy creeping around for girls as opposed to the random cool guy who gets hot girls.