These options are commonly requested by students and beneficial for most - they likely won't fill all your hours but can be an awesome thing to do in parallel with other work.
Wanting to be on the bleeding edge of Leadership trends:
https://daretolead.brenebrown.com/workbook-art-pics-glossary/, and/or
Perusing and focusing in on relevant items on HBR https://hbr.org/topic/leadership
Preparing for Graduate School Specific Tracks:
If you're considering an MBA, I recommend reviewing and implementing the relevant items out of these steps (or if Eller is your target I believe they have sessions you can attend to tell you what you need to do to apply to them - get one on your calendar and count that prep for this course!): https://www.economist.com/whichmba/ask-expert-how-apply-business-school
Preparing for I-O MS or PhD (this list can be applied to most graduate psych programs except clinical or PsyD): http://neoacademic.com/io-grad-school-series/