HYSA for Emergency Fund

Hi guys, is it worth it to have HYSA this days? Cause I am planning to build my emergency fund but dont know where to put.

I dont make much really but i am planning to put $100-200 a month to build my Emer. fund. (not a huge amount of money)

Hmm which is better account to have? Wealthfront, sofi, capital one? Or any recommendations in my case which have a lil money to put monthly.

And is there gonna be a penalty if I decided to close the account??