None of the other AES finalists were vulnerable to known plaintexts attacks. Neither is 3-DES or chacha20. DES and RC4 are now considered insecure, but in their day they were resistant known plaintext attacks as well.
Other than some toy examples, and cryptosystems that were used before cryptography was studied academically, I can't think of any that are vulnerable to known plaintext attacks.
Other than some toy examples, and cryptosystems that were used before cryptography was studied academically, I can't think of any that are vulnerable to known plaintext attacks.