Hello Glenn,
Long time, hope you and the family are doing well.
I use a normal 2 arm center pull gear puller, probably like the one you have used before. If you are using one enough to justify the cost, you might look into a puller kit. Mine is made by Snap-on but I am sure there are alternatives out there like Craftsman etc.
Having a kit is nice, they are reversible (inside to outside, slide hammer to center shaft pull) and have many configurations (2 arm, 3 arm, single arm) that include extra or different (thinner or thicker, long or short) arms. It also allows you to modify the arms for a specific type of application.
Don't rule out a little vibration to the knuckle or removable part, most times this is enough to loosen the grip of a siezed component. If you are very careful and use some skill, a small air hammer in the right spot will instantly free a stuck component. Good luck!