I also faced the same dilemma with the sudden closure of DLease. Some of the delegators have remained while the majority have undelegated their HP.
Currently requesting HP Delegations to those who are willing to agree, like peer-to-peer transaction/agreement. So far I got some positive feedback but I'm still 10k away from the previous HP the leased through DLease.
Hopefully, I can gather more HP Delegation in the coming days soon.