I’ve been needing to flush the radiator but not finding the drain plug. I have looked all over the bottom of the radiator. (PS. It would help if the visual photo could be included)
Some radiators don’t have drain petcocks. Even if they do, you don’t want to drain them that way. The old plastic gets brittle and then breaks. Remove the lower radiator hose and drain it that way
The aftermarket parts that pop up have the petcock in the place the video u/conspiracy_troll cited. Bottom passenger side of the radiator.
However… Like u/RickMN said - If there’s a high likelihood of that petcock breaking, removing the lower hose is a safer/less likely to break stuff way of going about it.
Why are you “flushing the radiator”? Is this preventive maintenance, or is there an issue you are trying to identify/resolve, relating to the coolant system?