Guest Post Finder is a 100% free and full desktop application that will search (scrape) Google for guest posting opportunities in your niche so you don't have to spend hours manually doing the same. It will even check Moz DA for each website so you can assess how powerful each link will be.
Guest Post Finder simply fires HTTP requests to Google to perform searches with your niche keywords and typical guest posting keywords words such as "guest posters wanted". There is currently a total of 40 and you are free to add and remove your own. The conditions for finding guest posts are highly customisable for example the guest post keyword match must be in the body, or title or meta data. Guest Post Finder also support proxies for blazingly fast results.
Finding niche related guest posts can take hours, even days sometimes. Why spend all that time when you can simply enter your niche keywords and let Guest Post Finder do all the searching and metric checking for you. Simply enter your niche keywords and come back to every guest posting opportunity there is for you.