The best way to get a sensor bar working is to buy a cheap 3rd party one (that is known to work with an actual Wii), then modify it to run off USB power (which will mean cutting off the existing wire, soldering on a USB lead, then replacing the resistors with weaker ones so the LED banks have the same voltage across them with USB power as they would have with a Wii). This can be a pain if you don't have electronics equipment (and an actual Wii to work out the target voltage across the LEDs), but will mean you have a sensor bar for not much money that will look as if it was made that way in the factory.
Using two candles means you need to have two candles near your screen, which can be a nuisance.
Using a wireless bar can mean you burn through batteries really quickly. Also, only a few of them actually work well, and they're expensive. You're probably going to want rechargeable cells if you go down this route.
There are some USB sensor bars you can buy, however, I don't think we've ever seen anyone actually buy one, so have no idea if they're usually crap, or are pretty reliable.
Finally, Mayflash have a product called a dolphin bar, which shows a Wiimote as an HID-compliant gamepad to games etc. and is supposed to show it as a Wiimote to Dolphin. Unfortunately, it doesn't work with any Dolphin revision from the last 18 months right now (which is odd, as it wasn't released long ago at all), but they're sending one to a developer, and he should be able to fix it. However, it's not sensible for me to say it'll definitely work, as it might not, and it's possible it'll take anywhere between a couple of weeks and 6 months if it does happen. It might not be a good idea to throw money at it until after it works, and that could mean you're without sensor bar for a while.
Using two candles means you need to have two candles near your screen, which can be a nuisance.
Using a wireless bar can mean you burn through batteries really quickly. Also, only a few of them actually work well, and they're expensive. You're probably going to want rechargeable cells if you go down this route.
There are some USB sensor bars you can buy, however, I don't think we've ever seen anyone actually buy one, so have no idea if they're usually crap, or are pretty reliable.
Finally, Mayflash have a product called a dolphin bar, which shows a Wiimote as an HID-compliant gamepad to games etc. and is supposed to show it as a Wiimote to Dolphin. Unfortunately, it doesn't work with any Dolphin revision from the last 18 months right now (which is odd, as it wasn't released long ago at all), but they're sending one to a developer, and he should be able to fix it. However, it's not sensible for me to say it'll definitely work, as it might not, and it's possible it'll take anywhere between a couple of weeks and 6 months if it does happen. It might not be a good idea to throw money at it until after it works, and that could mean you're without sensor bar for a while.
OS: Windows 10 64 bit Professional
CPU: AMD Ryzen 5900X
RAM: 16GB
GPU: Radeon Vega 56
CPU: AMD Ryzen 5900X
RAM: 16GB
GPU: Radeon Vega 56