What can I use to make a missile that follows a part instead of using RocketPropulsion

What can I use to make a missile that follows a part instead of RocketPropulsion. I have looked through the forum, and now that RocketPropulsion is depreciated I don’t know what to use.

You could probably just work out the direction its facing and add x velocity to the direction, to maintain a constant speed you to add all of the directions together and devide the velicity by that then multiply each of the directional values by that number. (Direction is taken from cframe). This would be set to the velocity on repeat.