Good place to level up Luba?

I'm currently on Luba's 3-dazer. Is there any place where I could level up her slayers?

If you have access to the Lannion Lands(Level 3 Mage guild). In the bottom floor of the beast Masters lair there are respawnable Catarsis Deamons that give her 2 points each.

M'Lady Blue in Ancient Dwarven Cave (Wmap 36) give her 3 points and are in Random encounter.
According to the Slayer topic in here the Swollen Frogus there gives her 3 points too but I haven't tried it so not sure.
Evil Necro gives he 3 points one of the places you can find it is Underking Castle

Lady Fireball in Fire Pit respawns infinitely and gives her 2 points as well. If you can get one that is next to portal(pond) you can kill it then port with the pond and port back and its respawned no need to run a lot, but gives only 2 points.

P.S. a lot of useful slayer info in there https://laxiuspower-shrine.rpg-board.net/t31-list-of-slayer-points

Thanks