Mine are held on NEXO which pays the best interest in the coin you have there. They also have a 375 Millions insurance. Best place BY far, and you can exchange there without having to transfer coin off site. At nexo you'll get 4% or 5% if you lock it 30 days.
I started on coinbase last April at 6 or 7% and was under the impression there would be a way to unstake it by now. Still locked up and interest rate keeps dropping