Hanger weights

I’m a lurker and haven’t posted enough to have permissions on the hanger forum, so I have to ask this here and hope the appropriate people will see and respond. I’ve done some basics, then bath-mate, and added phallosan last year. I think it’s time to step it up so I’ll be moving into hanging then later most likely clamping once length goals are reached.

The question - what do you use for weights?

I’ve seen many pictures using small barbell weights, I just wanted to see what options were out there though.
I bought a Bib starter, and just wanted to go ahead and source the weights I’ll need to use with it.