Find me an outfit pleasee!

Fashionistas!! I need you!

My brother in law's wedding is on April 10th and I have no idea what to wear. My husband is the best man so I wanted to look good next to him bc I know he's going to look good lol.

I'm 5,7 1/2 and about 110 lbs. Long legs with a short torso so it's really hard to find anything that fits my awkward unproportionate frame lol.

I was looking for something long or just not super short, and with a slit on the side, not picky about color but no white or black (baby blue would match the scheme though I don't really care about that). I didn't want long sleeves and I have a skin tone that works with gold and silver but my wedding ring is silver so I'd want to match that. I wouldn't want super high heels bc I'm already tall but I'm picky with that either.

If you can't help a sista out with anything specific than a store or shop you recommend will help as well. I just need to have it before the 10th, I'm mainly looking on Amazon because I know I can get it shipped fast.

Thank you in advance for anyone that can help!