Best options to find flights to BCN? I’m impressed how everyone is finding great flight options with points but I’m getting no luck.

I have bought a yearly subscription at a points searching platform to help assist but I’m having trouble finding anything. I’ve even went to each travel partner CapOne has and still nothing. Really the best option I found was just purchasing off economy off the portal. I have even searched larger closer airports to find better deals but at this rate it’s seems it’s not worth it. I’m sitting on about 240k points. Looking to travel between Aug to September for two. But mid September would work the best. I fly out of STL but can easily drive out to ORD for a later flight. Currently with the amount of points I can fly economy and book hotel out of the portal. But I hate to know I can maximize my points further and I’m just not looking at the right places.