Any active websites similar to this?

[makivka]

I am trying to find a forum where I can ask choral/singing questions. The only place I found to ask those kind of questions here on pianostreet.com is the "Anything but piano" section.

[j_tour]

I just found out about pianoworld, which seems to have some extra space for related musical topics.  The level of discussion seems about like here, with perhaps fewer, perhaps more, autistic "gatekeeper" elements. 

[rosejaune177]

What about the ABRSM forum? It doesn't just deal with ABRSM exams - there's a "Viva Voice" subforum, for example, that might interest you.

Also, it's a lot more polite than here

[stevensk]

There seems to be hundreds. Google "singers forum" etcetera