Deep null check inside linq expression, is there a better way?

Try to do not do any null checks in LINQ to Entities query. EF should handle nulls automatically:

_collection.Select(x=> new CollectionModel
    {
        Title = x.CollectionValues!.FirstOrDefault(x => x.Amount == amount)!
            .TranslationTitle.TranslationValues!
            .FirstOrDefault(x => x.LanguageId == languageId)!
            .Value ?? ""
    }
);