The web site of the National Library of Scotland offers a spotlight feature on broadsides, which they have a collection of nearly 1800. You can search these by keyword or year of publication (from 1650 to 1910), or browse by title or topic. And the topics are:
* Accidents [41]Pirates, more popular than transvestites but less popular than temperance? Right...
* Adventure and adventurers [5]
* Apparitions [11]
* Arson [1]
* Ballads [911]
* Body-snatching [40]
* Cholera [1]
* Clothing and dress [16]
* Courtship [233]
* Covenanters [7]
* Crime [88]
* Dueling [9]
* Elegies [59]
* Emigration [44]
* Executions and executioners [147]
* Fairs [8]
* Forgery [12]
* Freemasonry [4]
* Highlanders [14]
* Hiring fairs [5]
* Humour [177]
* Incest [2]
* Ireland and the Irish [40]
* Jacobites [33]
* Last words [88]
* Marriage [63]
* Marvels [7]
* Murder [240]
* Pirates [7]
* Politics [135]
* Prophecies [7]
* Prostitution [11]
* Rape [8]
* Religion [35]
* Riots [19]
* Robbery [59]
* Royalty [27]
* Shoemakers [7]
* Slavery [6]
* Soldiers [53]
* Sport [24]
* Street life [3]
* Suicide [13]
* Temperance [17]
* Transvestites [4]
* Treason [9]
* Trials [76]
* War [26]
* Weavers [2]