Camera
Whilst "the best camera is the one you have with you", I have experimented with different equipment from film, to DSLR and smartphone on the streets.
As a preference I now tend to use either a Ricoh GR iii or Fujifilm XT-5.
I’d like to give a call out to the Stills Gallery, in Cockburn Street, Edinburgh. Their exhibits and courses are superb (https://stills.org).