I am assessed as Electrical Engineer code (233311) list...

I am assessed as Electrical Engineer code (233311) list (MLTSSL, CSOL) and I would like to assess my wife, we have two options:

Customer Service Manager code (149212) list (STSOL)

Or Financial Investment Adviser code (222311) list (STSOL, CSOL)

What I understand is that I can apply for visa 189, but I cannot claim points for her assessment because her occupation is not on the 189 list.

But when applying for 190 or 491, which occupation is better? Should I choose Financial Investment Adviser since this occupation and Electrical Engineer are both on the CSOL list.

Or can I choose Customer Service Manager which is on the STSOL list, while mine is on the CSOL list, and still claim her 5 partner skill points normally for 190 or 491?

and also I i will submit EOI for her, which occupation is better in invitation rounds for her ??