I'd say a case and a screen protector is a good place to start.
[https://www.apple.com/shop/iphone/iphone-accessories/cases-protection?page=1&fh=458b%2B4959|Cases on Apple's site]
[https://www.walmart.com/ip/Tech-Armor-New-2017-Apple-iPhone-X-iPhone-10-Screen-Protector-Wet-Applied-Thermoplastic-Film-TPU-Complete-Curved-Edge-Display-Coverage-Bubble-Free-HD/475658817?wmlspartner=wlpa&selectedSellerId=1427&adid=22222222227134368332&wl0=&wl1=g&wl2=c&wl3=242076375524&wl4=pla-397338936365&wl5=9001881&wl6=&wl7=&wl8=&wl9=pla&wl10=112562536&wl11=online&wl12=475658817&wl13=&veh=sem|Some screen protector that is cheap and looks halfway decent.]