You can get 3-in-2 Multifunctional USB-C Hub Splitter Adapter OTG for $11.99 with coupon (from Banggood). Basically copy coupon, view price history or create e-mail price alert. What is the best price?
Latest coupon code price check (UTC time):
3-in-2 Multifunctional USB-C Hubs USB/Type-C Male to USB2.0*3 Female Multi Splitter Adapter OTG USB Power Adapter for Laptop Tablet Phone U Disk
Banggood ($11.99)
Banggood warehouse is located in China. CouponsFromChina software could not find any coupon for this product in Banggood. What about the price? Hmmm, price is higher than average (which is $11.51 right now), so better set price alert down below…
Link: Banggood product page
Price: $11.99
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Price history and price alert
Check out price history chart (for all/most countries) for 3-in-2 Multifunctional USB-C Hub Splitter Adapter OTG.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).