6 bridesmaids and 2 groomsmen

I wouldn't worry about how it looks and I also wouldn't try to change his mind. If it really bothers you, then maybe have the MOH and best man stand with you, but have the others sit in the front row.

I wouldn't stress about it. I have two bridesmaids to his 5 groomsmen.
The stress of trying to even out the numbers with people he wouldn't have originally asked to be his groomsmen isn't worth the potential drama down the road.

I wouldn’t worry too much about the numbers unless you think it’s really gonna bother you, I don’t think anyone else will mind. But if you really want it to be even, the idea of having just your best man and MOH stand up with you guys and maybe the rest of the bridal party sitting in the front row might be a good idea!

Do not succumb to the pressure to have the same number of folks on each side. This is YOUR wedding! What is most important is the people in your party are special to you both! I am sure no one will mind

Your nearest and dearest >>>>>>> aesthetics. I know it can be easy to get caught in the weeds with a "vision" when it comes to wedding planning, but your relationships with your friends and family should always come first. It'll look fine: have his side stand up with him and your side stand up on yours.

I think when I see a wedding party that's uneven it's not bad to pair up same sex people to walk down the aisle. As far as it looking uneven,if that really bothers either of you maybe you could put some sort of decoration next to the men's side. If it doesn't end up being a big deal I would just not worry about it and when you take wedding party photos have the bridesmaids and groomsmen mix up together in fun poses. Hope this is helpful. My fiancee will have more on his side than mine but not quite as large of a number gap as your situation.

I'm probably going to sound like the buzzkill of the group, but the unevenness would drive me insane! My FH and I think of our wedding as "tradition with a twist", but that's one tradition that had to stay as is: an even bridal party. We have four attendants each, and that's exactly how we wanted it. Four was a reasonable number. My fiance was a little concerned about finding the right people because he doesn't have a lot of close friends, and he doesn't have any brothers or very many cousins, male or female. In the end, he has his two best friends from college (one of whom is the best man), his nephew, and his brother-in-law, both of whom are like brothers to him. Is there a particular reason your FH only wants his two brothers? Does he have any other close friends or maybe cousins, even a BIL, that he'd be comfortable asking? It's not something I'd be up for, but even if he had female cousins, sisters, or close female friends, that might be fine, too. I know lots of people who have opposite sex attendants; bridesmen and groomsmaids, if you will. I don't want to become the movie "I Love You, Man" where the bride's friends all made fun of the groom for not having a lot of guy friends. I'm genuinely just curious about the situation. If your FH did think there might be others he could ask, it appears he has a little more than a year to do so.