So many places in the game have a VIP taxi of sorts places. I would suggest that a Taxi should take players to the map where Rius is located. It's the middle ground for those heading to Chao and Ellenia, without directly putting players there. I think it could be priced somewhat aggressively (50-100k), but still be a net positive for players. I can understand it's in the past and may need some sort of NPC conversion or add it as function of another NPC (Maybe Perzen could 'teleport you' or something?
A bunch of the Ellin maps already have teleporters. Off the top of my head, the first map to the left of town has a teleport near the bottom left, to the right of a fallen tree, that takes you to the top right of the map. The next map has a teleport in a little alcove a little above and left of where you enter, which also takes you to the top right. The next map with all the tree stump enemies has four teleports that go in a loop, with the first right next to the NPC. Those are the ones I know about.
First fairy map has a good teleport on the bottom left that warps you up, 2nd one also has a teleport but in a far less useful spot on bottom middle to top. there's also a teleport on the last platform of the vertical stone bug map. i lowkey enjoyed looking for those, it reminded me of victoria island where you just had to spam up to find hidden maps
I would would love for speedy option to get to the bosses, however, just not a VIP Taxi as wouldn't make sense for the area to have cars during the time period. I wonder could we leverage on the barrier stone activation mechanic to allow for fast travel. Below is a just quick mockup.