Train
The train from Schiphol to Alkmaar takes about an hour. The trains in general are a great way of getting around! Here's a nice summary of all the details of how use them (what machines dispense train tickets, how to use the cards, etc): https://www.phenomenalglobe.com/how-to-travel-by-train-in-the-netherlands/
Hotel
This hotel is popular and within a minute's walk of our house. It also provides bike rentals at about 11 euro per day.
Hotel
The King's Inn has a perfect location in the center of Alkmaar. It has hotel rooms as well as cost-saving hostel accommodations.
Travel Note
There are a few options for bicycle rental in the area. The average prices for a city bike are € 11 per day and € 25 per day for an electric bike.