The record player is sitting on a Sanus media stand:
Sanus AV Media Stand with Built-in Cable Mangement & Adjustable Feet - Heavy Duty Design Holds 400lbs of Audio/Video Components - Features Simple 15-M https://www.amazon.com/dp/B00E8JLS4G/ref=cm_sw_r_cp_apip_u8W7nEli5XZpQ
The gaming PC is sitting on an IKEA Alex drawer unit:
https://www.ikea.com/us/en/p/alex-drawer-unit-white-00473546/
That one is supposed to support 400lbs of audio equipment.