If you switch the Wii to 480p mode, they may work in an HDMI compatible manner. Output resolution: 720p / 1080p (whether the high resolution can be achieved depends on the input signal). 1pc x Wii to HDMI Converter.
eBay
Vention Micro HDMI Adapter 1080P Micro HDMI Male to HDMI Female Converter Type D to A HDMI Adapter for PS4 Camera HDTV Mini HDMI
Aliexpress UK
This Wii HDMI adapter plugs into the output socket on your Wii console and lets you use any standard HDMI lead to connect to the TV instead of having to fiddle around with the older cables which are also lesser quality.
eBay
4K Micro HDMI to HDMI Cable High Speed 4K@60hz Full HDMI to Micro HDMI Adapter Compatible with GoPro Hero Sport Camera Pi 4
Aliexpress UK
If you switch the Wii to 480p mode, they may work in an HDMI compatible manner. Output resolution: 720p / 1080p (whether the high resolution can be achieved depends on the input signal). 1pc x Wii to HDMI Converter.
eBay
Support Full HD 1080P Wii To HDMI-Compatible Adapter Converter 3.5mm Audio For PC HDTV Monitor 720P Wii2HDMI Adapter Converter
Aliexpress UK
For Wii to HDMI-compatible converter: convert for Wii input to HDMI-compatible HD output to provide more realistic HD visual effects. Support for Wii all display modes (NTSC 480i, PAL 576i). they can only work over composite A / V lines.
eBay
50pcs/lot for Wii to HDMI-Compatible Adapter Converter Support Full HD 720P 1080P 3.5mm Audio Wii2HDMI Adapter for HDTV
Aliexpress UK
The WII TO HDMI converter can output HDMI signals for direct connection to monitors/TVs/projectors! wii to hdmi HD converter: 1m. 1x wii to hdmi HD converter (1m). It uses a standard HDMI high-definition interface to connect to a TV or monitor, with a clarity, brightness and sharpness that is unmatched by previous analogue interfaces!
eBay
XIKCU Support Full HD Wii To HDMI-compatible Adapter Converter 3.5mm Audio For PC HDTV Monitor 720P Wii2HDMI--Compatible Adapter
Aliexpress UK
The Kaico HDMI converter for use with Nintendo Wii consoles was designed so you could use your Nintendo Wii on a Modern TV with a simple ‘plug and play’ solution. The Nintendo Wii Mini (RVL-201) is not supported by this adapter.
eBay
1080P Full HD Wii To HDMI-Compatible Converter Adapter 3.5mm Jack Audio Video Cable Adapter 720P For Laptop HDTV Monitor Display
Aliexpress UK
The WII TO HDMI converter can output HDMI signals for direct connection to monitors/TVs/projectors! wii to hdmi HD converter: 1m. 1x wii to hdmi HD converter (1m). It uses a standard HDMI high-definition interface to connect to a TV or monitor, with a clarity, brightness and sharpness that is unmatched by previous analogue interfaces!
eBay
XIKCU Support Full HD Wii To HDMI-compatible Adapter Converter 3.5mm Audio For PC HDTV Monitor 720P Wii2 Adapter Converter
Aliexpress UK
Support high-definition output: 720P 60HZ/ 1080P 60HZ. For WII to HDMI-Compatible Converter Cable For HDTV Monitor Display Wii To HDMI Adapter HD 720P/1080P. 1x For WII to HDMI converter. Output interface: HDMI interface.
eBay
Mayflash For Wii to HDMI-compatible TV Converter Support 720P/1080P Adapter 3.5mm Audio Converter For TV Monitor PC Projector
Aliexpress UK