My choice, though I love my Leica M's is a SLR., usually no meter,
Most older are all mechanical (Except Canon A series but very reliable).
Purchased nice condition Pentax Spotmatics, KM, Nikkormat(mint),
Nikon F; Were all priced from $10~~$80 (Nikon-f with 50mm f2.0.
I love my Canon Ae-1p (free), the Av-1 and lenses were easy..50mm came with body and 28mm Canon purchased for $40.
The LTM Leica are a pain to load unless you really research..
A Business card helps in loading!
Using fall-off added viewfinders not my idea of fun!
The Contax and Kiev worry is servicing..
Street photography has NO rules!
The 50mm (my personal favorite) but love using longer or wider..