Pre-Cerid Wen-wise, there's also Balor/Tezcatlipoca/Nodens

Heimdallr's SR filler.
Gabriel lasts until you no longer care for -12% def A-frame.
Balor's mainly for Evil Eye (debuff resistance debuff; overwrites vicissitudes of fortune IIRC), attempting Dazzle, and attempting Blind/15 seconds of Paralysis.
Tezcatlipoca's SR filler.
Baldr's shit.
Pale Rider's SR filler.
Nodens is if you really want a regen and a debuff cleanse in your water team.

A lot of the old raid SRs are basically filler, although Balor is really solid for SR.