Practice with these expressions with the following exercises:

https://www.perfect-english-grammar.com/so-too-neither-either-exercise-1.html

https://www.grammarbank.com/so-neither-either-too-exercise.html

https://test-english.com/grammar-points/a2/so-neither/

https://www.espressoenglish.net/so-neither-too-how-to-agree-in-english/

https://www.grammar.cl/Games/So_Neither_Either.htm

https://usefulenglish.ru/phrases/phrases-exercise-six