Otherwise, just do spiders in that dungeon under barbarian village. You could also try gorillas on Ape Toll. They are aggressive, have a ton of hp, and you can use the alter to recharge your prayer.
Slayer, Armored Zombies near the chaos altar, gorillas on Ape Atoll only if you have 95 strength or are use Dharoks. I've always preferred Slayer, but that's just me.
Armoured zombies use salve ammy, at ape toll where the gorrilas are there's an alter next to them pray there and don't get stuck inbetween them with low pray (you can't run through them, so run around them.) Bandits is ok but doesn't give as much exp as the stated ones above but you can afk at bandits with guthans.