there is https://primebroker.coinbase.com/private-clients https://primebroker.coinbase.com/private-clients and https://custody.coinbase.com https://custody.coin

there is https://primebroker.coinbase.com/private-clients https://primebroker.coinbase.com/private-clients and https://custody.coinbase.com https://custody.coinbase.com but these both have the same problem for holding lots of ADA. The whole proof of stake means I need my large $ not in coinbase but in my own real wallet using that $ to make more ADA.