[Question] Is there something like a “meta-encyclopedia”?

With Wikipe­dia show­ing in­creas­ing signs of ide­olog­i­cal unifor­mity, I thought I should try to di­ver­sify my con­sump­tion of refer­ence ma­te­rial. A po­ten­tially very use­ful tool for this pur­pose would be a “meta-en­cy­clo­pe­dia”, i.e. a place where users can find a list of all ex­ist­ing en­cy­clo­pe­dia en­tries on a given topic. Ques­tions:

1. Does some­thing like this ex­ist?

2. If not, what are the clos­est sub­sti­tutes?

My cur­rent method is to sim­ply do a Google search for the topic of in­ter­est fol­lowed by the word ‘en­cy­clo­pe­dia’, e.g. ‘com­par­a­tive ad­van­tage en­cy­clo­pe­dia’. This method is already quite use­ful, with a much lower false-pos­i­tive rate than I would have ex­pected, though I feel there’s still con­sid­er­able room for im­prove­ment.