Inspired by some questions on where there are shuls, here's the start of an effort to provide that knowledge, especially in neighborhoods where visitors from Chutz Laaretz may frequent.
This cannot be a "Minyan Chart/Map". That takes tons of effort to maintain in just a single neighborhood, impossible when larger than that. It would quickly be out of date, and soon after that - hopelessly obsolete.
Instead, we can provide the locations of shuls, and a general guide to the times that you could expect minyanim to occur.
General rules: (in my experience, without thinking about it too much, please comment and help refine 😁)
Weekday:
Like most of the world, most minyanim are at the times that allow residents to go to their daily obligations, expect minyanim to start at some point between 6-8am. Neighborhoods that have many commuters/professionals/agricultural workers may have even earlier minyanim and few or even no later minyanim
Netz minyanim are more common than in the rest of the world.
Chassidishe areas will have later minyanim.
Yeshivishe areas will usually not have minyanim after zman krias shema, sometimes even the first zman.
EM usually daven early
Mincha:
Yeshiva/kollel areas will have minyanim at mincha gedola (At MG, or 1-2ish), and before second seder. In winter there may be a minyan or two at plag/just before shkia. In summer, minyanim from 6ish till shkiya (or beyond by the chasidim).
during bein hazmanim, there will be many more minyanim
In non-yeshiva/chasidish residential areas, you may find a mincha gedola, but much more common is mincha/maariv - no matter the season. (very common among the EM)
Business areas: like the rest of the world, no real rule, whenever is convenient for the people (usually lunch time in professional areas)
Maariv: in non-yeshiva/chasidish residential areas, after mincha and other than the odd 9pm or so rare much later than that.
In yeshiva/chassidish areas - starting after second seder - till chatzos or later...
Shabbos:
Kabbolas Shabbos:
Shacharis
EM daven early, netz is common.
Litvish often make first zman KS, though in chutznik aras 8-9 is more common
CHassidim. Often 9 or later
Mincha gedola is popular, especially in the less "yeshivish" areas.
The late (just before shkiya) mincha is less attended, except in Chassidish areas.
Unless in a chassidish/"machmir" neighborhood Maariv is often 20-50 minutes after shkiya, with a great drop in the amount of minyanim after that time.
There's no way for me to do this all by myself. I have neither the time, nor the intimate knowledge of every neighborhood.