In my first two roles I found that more senior level developers gravitated towards mentoring me anyway. I didn't really even have to seek it out, usually just getting in the door and humbly admitting to yourself that you don't know as much as you thought you did is enough for people to want to share their knowledge with you.
Don't be afraid to ask questions in the workplace when you're new, that's the only cardinal mistake you can make, the mentorship will come automatically.
In my first two roles I found that more senior level developers gravitated towards mentoring me anyway. I didn't really even have to seek it out, usually just getting in the door and humbly admitting to yourself that you don't know as much as you thought you did is enough for people to want to share their knowledge with you.
Don't be afraid to ask questions in the workplace when you're new, that's the only cardinal mistake you can make, the mentorship will come automatically.