What is basic like NaOH,from the following?

1)CH3NH2
2)(CH3)2NH
3)(CH3)3N
4)[N(CH3)4]^-(OH^-)
5) 2,4,6-aniline

What is the reason?

I don't believe 2,4,6-aniline exists.

All of the amines listed, except for #4, are covalent amines and are weak bases. #4 is ionic like NaOH. Both TMAH and NaOH are strong bases. It helps us do a better job if you don't change screen names.