Looking for place to buy formal-ish clothes

My partner and I have a summer formal wedding at the end of August. Are there any decent places around to shop for these clothes (male and female) that aren't overpriced?

I'm not interested in designer clothes or luxury brands. I would be interested in lightly used thrift items or new. I can also drive around, if there's somewhere in Albany for instance.

I appreciate any advice.

Thank you!