This is not what you want to hear, but there is no BETTER strike indicator, but there are PREFERRED options.
I make closed cell foam indicators that look like a fluffy yarn indicator but float better.
But my favorite indicator is to use a stimulator (Kaufmann's or Sofa Pillow)
The hottest thing in Colorado looks like a gum ball size plastic bubble.
Oklahoma fishermen seem to prefer small yarn in a "Y" shape.

I have seen many fish caught on styrofoam corks you could use for bluegill.

If you get into agressive fish (including trout), the indicator is going to go down like you were after sunfish.
If you get into typical trout, ANY change in the indicator's movement is probably a strike.

Many trout fishermen tell you the fish can be scared by an indicator. That seems to be less true every year.