This site may be of some use, especially if you speak German! https://www.climbers-paradise.com/
Even if you don't it may still have some useful info. Scroll down to the map and zoom in on Salzburg, click on the nearest area and it will bring up a list of climbing types, eg Sportklettern (fairly obvious), Klettersteige (via ferrata) etc, type them into google translate if you need to).
Click on what type of climbing you want and it brings up crags where you will find icons outlining what its like, links to actual topos and some blurb which again you might want to cut and paste into google translate.