It's an idea worth some experimentation.
Or to have a potentiometer choose how much comes from a capacitor and how much from an inductor.
This simulation selects a range between phase advance or retard.
The potentiometer was dialed from left to right during the run. The scope trace tells the story. Notice at the beginning, output phase leads the source. By the end, output lags.
View attachment 155050
These values seemed suitable for 5 MHz. They were chosen to attenuate the source 5V amplitude about half. To select values your own project 1-30 MHz may require some trade-offs in performance.
There is another possibility: make a series LC. Ground one end, apply your signal to the other end. Tap for output between the L & C.
Reverse the LC, to obtain different behavior.