My recliner sofa handle broke so I modelled up and printed this, you will need to run a 5mm drill down the hole once printed but otherwise works well on my chair. I've included the fusion file so dimensions can be changed to suit your needs. I printed two versions, one with 20% infill the final being 100% but to be honest either should be fine.
Carefully drill out the pin on the rivet side to remove the old broken handle and either insert new or in my case reused the old pin.