The site's scope currently specifically mentions as off topic "shopping recommendations for specific products". This is to a large extent because Stack Exchange generally does very poorly for product recommendations.
However, we do occasionally get service recommendation requests. (For example, this rather old question.) These types of questions often share the same problems as product recommendation requests, and not uncommonly even more so.
I'm not exactly a fan of further limiting the site's scope given that we really don't see a whole lot of traffic, but at the same time service recommendation questions feel like they should be off topic for largely the same reasons as product recommendation questions.
Should service recommendation questions be listed as specifically off topic? Perhaps by expanding the above-mentioned bullet point to something like "shopping recommendations for specific products or services" or "questions specifically seeking recommendations of products or services". The opposite would be questions which seek to solve a problem (which a product might).