(This is mainly based on looks)
If I had to name some of my favourite types of mushrooms it would be:
Amanita
https://cdn.britannica.com/s:700x500/82/174582-050-CD09D87F/Fly-agaric-amanita-mushroom.jpg
I do not know why but I just find them so beautiful to look at, though they are pretty toxic (you can get that by their other known name Death cap)
Lactarius Indigo
https://i.pinimg.com/564x/7f/db/c4/7fdbc4d69067befdf6bd732ca3eeaf5d.jpg
The colour is such a beautiful shade of blue and correct me if I am wrong but get their browner shades the older the mushroom gets. (Another name they are known for is Indigo Milk cap)
the blue one is Prety ☺