I work from memory and it is a while now.
Most -200s had no FMS. A late 200adv might have one probably Honywell.
Most had a Performance computer probably Honywell.
Autopilot mostly Bendix.
Flight director Collins FD108 or more usually FD109.
Remainder of fit Collins, various units dependent on age and operator preference.
This is an impossible question as the fit varied with age, mod state, operator preference.
If you check Google images B737-200 cockpit you will get a sense of the variation. There is one with a Sperry Flight Director, something I have never seen.
HTH