All of the information presented is based on an estimated hourly statistics and as will all hash-tagging don't use too many. Pick what suits your brans best and use it.
The most obvious one to start with. #glasgow sees around 71 unique tweets per hour with around 142,000 people seeing it. Roughly a quarter of said tweets are sent out with images. These tweets would see a lot more engagement if they had images attached to them.
#glasgowchat isn't as popular as #glasgow for obvious reasons but tweeting this with an image could get you noticed. It still surprises me how little tweets are sent out without images.
peoplemakeglasgow.com is a well known campaign helping to promote what Glasgow has to offer. It seems at first glance that all the tweets that use this hashtag come directly from the People Make Glasgow twitter account linking back to their website.
A bit of hyper localisation here. With many things happening in the Southside such as its yearly festival this hashtag will see spikes from time to time.
At 4 tweets per hour and an estimated 8.83k views per hours #glasgowisgrande is worth keeping an eye on.
As you can see from the graph #glasgowisgrande has seen some spikes over the last 30 days.
#forglasgow does really well with retweets. Using this could get you some half decent exposure if you are looking to grow you reach. Make sure your tweet is engaging and has an image to try and bag yourself some followers.