Hi, What I do now is open the camera app on my IPhone, prop my phone up on something around head or at least chest level so it's straight up and down, and walk in front of it until VoiceOver says 1 person centered, then I use my Bluetooth keyboard that I'm holding at waiste level in front of me to click the take picture button. Back 15 years ago I used to use Seeing With Sound on the PC to center myself. I would hold 2 white canes along side me at equal distance from my ears while sitting in front of my web cam, and adjust the camera until I heard the distinctive sound of the white canes as framing blips or single tone sweeps on either side of me with equal amounts of outside space on either side. I would try to wear a dark colored shirt so I could distinguish if my face was in the right place and the camera wasn't too high or too low. Seeing With Sound scans the image from left to right every second or so. Several years later sometimes I would have a friend on Skype help me center the camera and take the picture using Skype. All 3 methods have worked well for me, though I don't do it very often. I either show the pictures to my Mom or a friend to ask their opinions before I post it anywhere. The tricky part, as always, is to have your eyes open when you take the picture and hope they're not in an odd position aiming left or right lol. But that's the case no matter who takes the picture. At least when I take it, I have control over the exact moment the picture is taken. I also generally take at least 3 and have my Mom or friend tell me which one is best. I have a friend who posts videos to Youtube, this year he tried pointing the camera where he heard fireworks. Don't know if he actually got anything good, nobody sighted commented unfortunately.

P.S. you'll have to ask a sighted person eventually, so choose someone you like and trust, and if they laugh, remember they're not laughing at you, it's a natural reaction, and they should be impressed you even tried. If you use the camera app on your IPhone, center yourself according to what Voiceover says, and stand still when you take the picture you shouldn't have any problems and they'll be impressed how well it turned out. Just remember not to have bright light at your back, have the sun or a light source on the opposite side of the phone from you if you're using external light and not doing it in the dark. Don't have your back to a sunny window.

No really good way unfortunately it’s good to always check. Lest you have my scenario someone once online told me I have an inappropriate picture on twitter. Not because I wanted to look sexy or inappropriate it just happened. I think it was a picture taken but then twitter wanted to play with the image. I am a lady too and basically the picture was showing my boobs and someone else said my head was kinda cut off. Oops!

I wasn't sure if there was a way for a Be My Eyes volunteer to actually take a picture of you and have it save in your photos, so I didn't mention it. Or do you have to have both Be My Eyes and the camera app open and click the button yourself when the volunteer says when? That would be tough without an external keyboard.

If you have an iPhone, it can guide you and tell you when the camera is centred. If it's a newer iPhone (I believe XR series and newer?) there's an option to select image descriptions - for example, iif I take a selfie, it'll say "A smile smiling and posing in front of a white wall." (I look really young for my age, apparently)

Just speaking personally, I would never upload a profile photo without asking a sighted person about it first. Taking the photo is all well and good, and I've gotten better at it the more I've practiced, but I would still be anxious that it wasn't centered correctly, or my eyes were doing a weird thing, or there was stuff in the background that needed to be cropped out, or a million other things I've been told about over the years. And even if the photo itself was flawless, a lot of apps do annoying things to them when you upload them, like cropping out integral parts of you or tilting/rotating the photo or whatever, and there's no good way to know that's happened until you post it and someone tells you.

I'm fortunate that my mom is sighted and very patient about helping me get the photo just right, and she's always willing to do the actual uploading for me so she can fix the things that get messed up. I've sent her literally a dozen photos in a row before because I needed a slightly different angle or my hair was doing something bad and I needed to fix it or the lighting was wrong or...so many things. Some blind people are okay with posting an imperfect photo because they want to do it completely independently, but I am not one of those.

I know a lot of people who use Aira or other similar apps to have someone sighted help them, and also so they can get a good and detailed image description, so that's also an option. I've never done it because I don't need to, so I can't give any tips or info about the process, but those I know who do it seem happy with it.