As someone who has a hard time describing and looking for the types of furries I enjoy (even though its a huge niche), I think things would be easier for me if I can just look up a furry stage. In addition, people can blacklist the more frowned upon ones with just one tag.
I highly doubt itll ever happen considering we have like millions of pics nowadays (rather than just 70k like 6 years ago). Well if you havent heard of the stages, its summed up with a pic here: https://i.redd.it/gkwa016blgu21.jpg
And examples of stages I can think of:
Stage 1 - Raphtalia, Gorou, y'shtola
(stage 2 and 3 look alike most of the time depending on who youre comparing it to)
stage 2 - Lola bunny, Mia, and maybe the sonic cast?, the beast, zorori, beastars cast, lucario
stage 3 - Cinderace, Sonic cast, klonoa, asriel, gumball
stage 4 - chip, scorbunny, cait sith, A lot of sanrio's mascots (eg, retsuko, or my melody), tony tony chopper, morgana, pichu, and vyrn
Stage 5 - kyubey, eeveelution, tod, simba, sakamoto, luna/diana/artemis, morgana in the real world
I can probably see this being hard to implement since people tend to turn a stage 4 or 5 into a stage 2.
Updated