A different one
Atbash is the cipher that was originally used in hebrew. Once again, you can do it by hand.
Here is a simple python script to do it.
#!/usr/bin/python3
from string import ascii_lowercase as lowercase
from string import ascii_uppercase as uppercase
string = input("Enter the string: ")
decrypt = ""
for i in string:
if i in uppercase:
decrypt += uppercase[-1 * uppercase.index(i) - 1]
elif i in lowercase:
decrypt += lowercase[-1 * lowercase.index(i) - 1]
print(decrypt)