Schools for Hellenistic Astrology

A black and white drawing of some old books with a genie's lamp on top of them

The course I took to learn Hellenistic Astrology, Chris Brennan and The Astrology School – 
http://www.chrisbrennanastrologer.com/

Other Astrologers, I would recommend for courses:

Austin Coppock – https://austincoppock.com/

Nightlight Astrology – https://nightlightastrology.com/

Astrological Schools

Kepler College –
https://www.keplercollege.org/

The London School of Astrology –https://londonschoolofastrology.co.uk/

Professional Associations

Astrology Magazines

The  Mountain Astrologer  – https://mountainastrologer.com/tma/

Personal Astrology Almanac

Honeycomb Collective; Personal Astrological Almanac  – https://www.honeycomb.co/

Astrology Chart Calculators

These sites will create/calculate your natal chart and much more.

Astrolabe – https://alabe.com/freechart/default.asp

Astro Seek – https://www.astro-seek.com/