In reply to myself, for the "down to about 200 AD" part I'd recommend Early Christian Fathers for some useful source material around the time of the shift from apostolic authority, to bishops' authority, to apostolic tradition.
I found Cyril Richardson readable for examples of proto-orthodox writings.
Early Christian Fathers (Library of Christian Classics) https://www.amazon.com/dp/0684829517/ref=cm_sw_r_cp_api_glt_i_X57Z1VYAKBRWA5YW6BJA
Also +1 to Bart Erhman’s Lost Scriptures. Read it in conjunction with its sister volume, Lost Christianities.
you can go to an Orthodox church and in their Bible study classes they talk all about early Christianity
I've seen priests use Early Christian Fathers as reference material in these courses
If you want something in a collected book form, Early Christian Fathers is 99 cents on kindle. Ignatius's letter is included.