Regular Savage triggers are adjustable to a certain degree....There used to be a guy on here years ago who went my the name "mounting man" ( he was a taxidermist among other things)
He once sent me a copy (by e-mail) of directions of how to do it yourself.
If i can find it I'll send it to you.
I'm not aware of what after-market trigger would be best for a savage.
I've had good luck with my several Timney's, but one still needs top be "slicked up"