Just Between Kids (Wildewood shopping center) and Qutie Pies (Callaway shopping center) are the two year-round places that buy clothes. You need to call them to make an appointment, they don't do walk in drop offs. They both have Facebook pages that they actively maintain and you can also contact them that way.
Leprechaun Lilly is also an option, but it's only held in the spring and fall and the consignment spots go FAST. Like, you need to be sitting on their website actively hitting refresh on the day they open.
If you're just looking to offload the clothes there are several places that take donations. Leah's House (?) is a women's shelter and they usually need stuff. There are also the Care Net pregnancy centers in the area that also accept children's clothing and other items.