I Too have 10*50 from Astronz. I agree with Tracey – they are very light and fine quality. I too have astigmatism but use it without glasses and don’t feel disadvantaged.
8*50 you would love if you like 8*20. 7, 8 or 10 magnification is a matter of personal taste and requirement.
I cant vouch for other retailers but anything from Astronz is reasonably priced and of good quality because this is their philosophy.
Cheers
Terry