Honestly, in terms of effectiveness, liposuction is so intense that no procedure, massage, or diet can compare.
I had liposuction on my thighs and arms 5-6 years ago, and my weight went down by 5-6 kg, and I think my thigh circumference decreased by more than 6 cm too.
So at the time of surgery I was very satisfied, but because I couldn’t properly maintain my diet, the yo-yo effect came right back after 3 months.
If you’re determined to maintain it for life, I recommend dieting. Also, if you get liposuction, skin elasticity can decrease and there is a high possibility of adhesions developing, so I hope you decide carefully.