Adding Filter to Events Page

Site URL: https://www.dropset.co/

I've trying to build a platform that has multiple gym classes offered by multiple trainers. 

Example:

• Trainer 001 offers 'Yoga' on Mon 9am and 'Pilates' on Tues 9am
• Tainer 002 offers 'Core' on Wed 9am and 'Yoga' on Thur 9am

I can create all the events and show them in a calendar that I want. But I understand the functionality doesn't allow me to add filters based off the categories (Trainer 001 and Trainer 002) and tag (Yoga, Pilates, Core).

Is there a way around this that makes it possible?

I aslo assume I can charge customers a fee if I convert my package to Commerce.