I think it’d have to be one of the higher resorts - Val d’Isere/Zermatt etc. Otherwise you’re going to get a lot of thin snow/icy patches which is no fun to ski on at any level, let alone as a beginner!
There are a few websites out there with useful articles if you google “best late skiing resorts” or similar - here’s one that might be useful:
I was going to say Montgenevre and see it's recommended in that thread. We went at Easter last year - admittedly much earlier than this year and an epic season - snow coverage was amazing and loads of nice long easy blues and greens. Nice resort too - not huge but restaurants have the Italian influence and there is a spa you could go to as well. Open this year until 27/04