> You can get a decent little drawing tablet for $30 these days. You'd probably spend half of that in the cost of pens over the device's lifetime. They're no longer ultra-expensive specialized equipment.

Can you suggest a model?

Huion H620 is a 4:3 tablet that is old enough to be pretty cheap. Their 16:9 tablets are just fine at least when I get the $40-60 ones.

Osu! Style drawing tablets are also a thing but they are small, maybe you want to spring for a slightly bigger tablet.

Not Wacom https://news.ycombinator.com/item?id=22247292

Well if you're on linux a second-hand one would be great, given you don't have their drivers (and you do have open ones). I have a Graphire3 6x8.

I got my wife an XP-PEN Deco01 V2 for $60 a couple months ago to help with teaching and it has been great. Not $30, but still very affordable.

Most people probably already have an ipad or android tablet. Drawing with your fingers is already far better than a mouse and a basic active pen like the logitech crayon is within anyone’s range who has an ipad. There are many clipboard sharing options to quickly push a cloud whiteboard from the laptop to the tablet.

I don’t get why anyone would subject themselves to the pain of drawing with a mouse.

A stylus that works with your existing device (phone or laptop, assuming touchscreen) works as well.

Plenty of cheap ones out there that work with most touch sensors

I do. I have an iPad and the Apple Pencil has made a huge difference for me, but I think its hard to expect everyone to have a device (even a cheap one) for that occasion when they want to contribute to the whiteboard.