How much do fillers usually cost?!!

I am seriously considering fillers these days, but I am really confused because the prices vary so much from clinic to clinic. Some places advertise incredibly low prices as part of filler promotions, while others charge several times more for the same area. I have absolutely no sense of what a reasonable price is, so I can't easily make a decision.

I am particularly debating between nasolabial fold and chin fillers. When I smile, my nasolabial lines look too deep, making me feel older than my age, and I think my face shape would look much cleaner if my jawline were refined a bit more. However, I feel uneasy about places that are too cheap, and honestly, the places that are too expensive are a huge burden, so it is hard to make an easy choice, haha. Especially since fillers are injected directly into the face, I can't help but be extra cautious.

I've heard that there is a significant price difference depending on whether genuine fillers are used, and whether they are domestic or imported, but since I'm a beginner, I don't really understand those aspects. I'm even more concerned because I heard that fillers aren't a one-time treatment; you have to get them redone once the maintenance period passes. At first, I planned to decide based solely on price, but after reading reviews, I'm even more confused because I learned that the doctor's skill is also really important.

For those of you who have actually gotten fillers, please let me know how much they cost!! If you have any experiences with fillers that were satisfying for the price, please recommend them too haha. I'm also curious if it's really true that I should avoid very cheap fillers~~