Look for "WHOIS Privacy" or "Domain Privacy." This prevents your personal contact details from being publicly available in global databases.
While .com is the most popular, you can consider others like .net , .org , or newer ones like .shop or .ai if your first choice is taken. how to buy a domain
A registrar is an ICANN-accredited company that manages domain registrations. Look for "WHOIS Privacy" or "Domain Privacy
Use your chosen registrar's search bar to see if your desired name is available. you can consider others like .net