My nasolabial folds are visible even when I'm not doing anything. Please recommend a cost-effective introductory procedure!

Lately, every time I look in the mirror, I keep looking at my nasolabial folds and it makes me upset. ㅠㅠ I used to think they only appeared slightly when I smiled, but at some point, I started seeing lines settling next to my nose even when I was just standing still with a blank expression.

After looking into dermatology clinics, I found there are so many different types of treatments—fillers, Shurink, InMode, Skin Boosters, and more—with prices varying so widely that I have no idea where to start. I'm also curious if expensive procedures are necessarily more effective!

Since this is my first time trying a procedure, rather than spending a heavy amount of money right from the start, I would like to begin with a 'cost-effective introductory procedure' that is reasonably priced and naturally refines the nasolabial folds.

I would like to know which of Botox, lifting, or fillers is better in terms of cost-effectiveness and effectiveness, depending on whether the nasolabial folds are deeply sunken or if the upper skin has sagged due to a loss of skin elasticity.

I would also like to know the approximate price range per session, how many sessions are typically required, and how long the results can be expected, based on treatments that are commonly sought after for their cost-effectiveness (e.g., jawline/lower face Shurink, nasolabial fold Botox, domestic fillers, etc.).

I absolutely do not want my face to look unnatural or excessively puffy. If you have any experiences or tips on choosing a clinic where you were highly satisfied with your first procedure while achieving natural improvements, please share them!