How can I optimize a 3D printed part for both strength and lightweight design in SolidWorks?

"I'm designing a bracket for a robotic arm that needs to be both lightweight and strong. I'm using SolidWorks and plan to 3D print it in PLA or PETG. What are some techniques or features in SolidWorks I can use to optimize the design? Should I use topology optimization or manually add fillets and ribs? Any tips on balancing weight reduction and mechanical strength would be helpful. Thanks!