Again that advise is repeated here -
How will Ukrainians be matched with a British family?
The government will not be matching British hosts with Ukrainians. Those who are approved as hosts will need to identify the Ukrainians they intend to host and then they will make a visa application naming their intended hosts.
However, in practice, many of those who are offering to host Ukrainians simply will not know anyone directly that might wish to come here.
There are a number of charities who are asking people to register their interest with them and who can undertake some of the matching process. They include:
Sanctuary Foundation – which is running online information events for hosts
Refugees at Home, a charity that has experience connecting refugees and hosts online
Room for Refugees, which has previously settled unaccompanied child refugees
Reset, which also has a sponsorship scheme for refugees from other conflicts
World Jewish Relief, which runs a number of projects in Ukraine.https://www.theguardian.com/world/2022/mar/15/homes-for-ukraine-what-do-i-need-to-do-to-host-refugees-in-the-uk
Also mentions about local authority hosing implications -
What are the legal hurdles to hosting a family?
It’s likely that councils will treat the offer of homes to refugees with compassion rather than enforcement actions but in normal circumstances there are restrictions on how people can offer homes and to how many people.
Christian Fox at Becket Chambers, who said he would offer free legal advice to those seeking to house Ukrainian refugees, said that offering anything other than a room in the main home – such as an annex above a garage or a cabin or a separate flat – could create a legal “tenancy”.
“If the owner of a second home or investment property were to allow several families to stay in a property, it may give rise to the need to register as a House in Multiple Occupation (HMO) under the Housing Act 2004,” he said.
“While we might hope that local authorities would be sympathetic, unless the government scheme allows exemption, then at the very least licensing will need to be investigated with the local council and their views sought.”
Fox said there were fewer legal complications for people offering a room but said it could still affect property insurance or risk breaching mortgage or lease terms, which hosts would need to clarify with their lender or landlord.