Hello,
What advice are you seeking? Equipment choice, technicals, techniques, creativity (how to see)?
Equipment: almost any camera/lens will do as street photography is not a demanding genre gear-wise and strength of content will always trump image quality in this genre. However, things happen very quickly and the moment may be lost in the blink of an eye. So equipment shouldn't slow you down and you need to train yourself to operate what you have very quickly.
Fast startup/operations, ability to change settings quickly (without menu diving), fast AF (or no AF at all if you shoot at hyperfocal distance), lag-free VF etc. are all good attributes.
Many street photographers like to go undetected so having a small discreet setup can help draw less attention to yourself. Even if you're a street photographer who likes to engage your subjects, smaller lenses can be less imposing.
Focal length can run anything from wides to telephotos depending on your style. But generally speaking, the wider you go the closer you need to get to your subject. So if you're shy, maybe start with a longer focal length.
Technicals: need to get more specific and best way to help is to critique images you post up, if you feel comfortable putting up some of your shots.
Some techniques:
Shoot further away with a telephoto to isolate
Shoot with a shallow DOF to isolate
Shoot closer and wider to give greater context of subject with environment
Shoot using hyperfocal distance to get as many things in focus.
Shoot from the hips (maybe presetting at hyperfocal distance)
Shoot wide and hold position for longer than necessary to not give away when you took the shot
Engage your subject and ask to shoot them
Shoot fast and keep moving
Anticipate a shot, preframe and wait
Shoot in a BW mode (if you're using an EVF or rear LCD) to help visualize geometry and contrast
There are really too many to list. Just try them out and practice.
It really helps to observe some experienced photographers going about their craft.
This is a video of Steve McCurry and you learn a lot just observing him.