Lankester Merrin
Striker
My wife learned to make them during lockdown, she doesn't have a "maker " though?
I can make them on a tava, but I never really felt that I mastered them - mine were always too thick, whereas the ones I ate at places like Diwana on Drummond Street were incredibly thin and crispy
The thing I have is like an upside down frying pan but with it's own heating element inside. Still takes a bit of practice, but it gets the dosa as thin as the professionals. I think it is aimed at a pro-kitchen rather than household use!!