Hi @Laura572
I'm not completely clear from your post - are you a GUEST wanting a host who can do a key handover in the evening, or are you a HOST wanting someone else to manage check in for you just as a once off?
If the latter I would suggest going to your local airbnb community facebook page and asking the same quesiton there - is there anyone willing to help out as a once off. OR you could ask a friend or neightbour or your cleaner to do so if they were agreeable. Good luck!