Depends on what you want. The general path is narrow body F/O, wide body F/O, narrowbody CPT, widebody CPT.

However, based on QOL, some elect to stay in the right seat of a widebody. For example, AA used to have an "up or out" policy. You had one year to upgrade after someone junior to you upgraded.

A lot of guys upgraded then bid back to widebody F/O at their first opportunity. UAL has a whole bunch of people who are perfectly happy to hold W/B F/O and not upgrade until they can hold a line in another aircraft.