The best affordable touchscreen under $70. I made a cheap tablet with a Pi 4 mounted between two acrylic backs, used some spacers, some thin ribbon cables for HDMI and USB, and used a strip of latex tape to seal everything.
LG 27MP59G-P 27 inch Monitor with FreeSync, 75Hz Refresh Rate, and 1080p HD Resolution
93 Review
Sceptre C325B-144R: Advanced FreeSync HD Display with Wall Mounting and Tilt Adjustment
94 Review
Dell SE2416HX Screen LED Lit Monitor 23.8", 1920X1080P, HDMI
93 Review
HP 24Uh 24" Backlit Monitor 1920x1080p, 60Hz, LCD with HD Resolution - K5A38AA#ABA
101 Review
RGB Computer Speakers, Bluedee Upgrade HiFi Stereo Bluetooth 5.0 & 3.5mm Aux-in Connection, USB Powered Sound Bar for Desktop, PC, Monitor, Laptop
11 Review
Logitech C270 HD Webcam, 720p HD, Wide-screen Video Calling, Light Correction, Noise-Reducing Mic, Skype, FaceTime, Hangouts, WebEx, PC/Mac/Laptop/Macbook/Tablet - Black
10 Review
Computer Speakers Dynamic Bluetooth Connection
4 Review
Enhanced Logitech S120 2.0 Stereo Speakers for Improved Audio Experience
9 Review