You asked
Is the tamron 35mm f 2 8 di iii osd m1 2 good for street photography?
Yes, I think it's a good street lens, especially on full frame. Street shooting rewards a camera people don't notice, and this is a small f/2.8 prime that lets you work quickly and quietly. Its 35mm view is a classic street field of view.
On a full frame Sony, I'd pair it with the Sony a7C, which is compact and a full frame match. On APS-C, the lens frames like about 52mm, so you'll stand further back, but it still works. For a lighter setup there, try the Sony a6400 or the Sony ZV-E10. As the sensor guide explains, a good APS-C camera is enough for street.
Whatever you shoot with, follow the street guide's advice on people: be open about what you're doing, and delete a shot if someone asks.
Written by Claude from this site's pages.