Size 8 sounds great to me! It's my goal size.
I can button them now, but I can't sit down comfortably if you know what I mean.
You're in the healthy weight range for your height. If you feel comfortable with your bod as is, you should try to maintain.
I wonder about this exact question with my own journey. I'll probably be comfortably in a size 8 in another 8 pounds or so. But I won't be at my goal weight. So, would I keep going at that point to reach my goal weight or just be happy where I am? I think I'm finally at the point mentally that I realize the number doesn't matter as much as how I look and feel when I see my reflection. Exercise has helped me tone, so I'm feeling great about my body now. Then again... I wonder what it would be like to wear a size 6 again... (Haven't worn a 6 since I was 14! lol)