[Grammar] I either go to the club or stay home

[beachboy]

1- On Sundays, I either go to the club or stay home.
2- On Sundays, I either go to the club or to the beach.
3- On Sundays, I go either to the club or to the beach.

Are sentences 2 and 3 correct?

 

[Barb_D]

1- On Sundays, I either [go to the club] or [stay home].
1b On Sundays, I [go to the club or] I [stay home].

2- On Sundays, I either [go to the club] or [to the beach].
2b On Sundays I [go to the club] or I [to the beach].

3- On Sundays, I go either [to the club] or [to the beach].
3b- On Sundays, I go to the club or I go [to the beach.]

Which ones make sense?
Which ones have the same type of phrase within the brackets?

How would you fix the wrong one(s)?