Share common data for all components in gameObject

Hi! I have a serious issue here. Let's say I want to have a gameObject Tree and gameObject Bird.

I want to Bird have Components like: Fly, Walk, Shoot and Tree: Grow, Fly (yes, my tree will fly :) )

I know that components Fly and Walk will have to use some speed. It is pointless to declare in both Walk and Fly "float speed" and set it in inspector, so I make one class which does not inherits after MonoBehaviour and looks sth like that:

 Class CharacterModel{
 public float Speed;
 public float Power;
 
 }

Then , in order to have this CharacterModel avilalble in inspector and for other components I create :

 CharacterInitializer{
 public CharacterModel Character;
 }

Now I can set in my model Speed and in each components where I need this value I just do

 getComponent<CharacterModel>().Character //.Speed for example

It works just fine for a gameObject which is a bird like eagle or parrot.

But if I have a tree, I wouldnt use CharacterModel, I would rather create :

 public Class TreeModel{
 public float LeafsCount;
 public float Height;
 public float  OxygenGiven;
 public float Speed;
 }

And now I certainly must create public Class TreeInitializer{ public TreeModel Tree; }

So If I want my components Fly and Walk use same Speed variable('field') then I simply go for getComponent<CharacterInitializer>().Character.Speed;

But let's say my game isn't really realistic and my Tree also can fly. I attach Fly component to my tree. And... It is not gonna work, because this tree has different Model getComponent<TreeInitializer>().Tree and Fly component need to have getComponent<CharacterInitiliazer>().Character.

So it looks like I would have to create seperate component like FlyTree which uses ().Tree.Speed, but compnents shouldnt behave like that, one Fly should work for each gameObject same way.

The question is: How to solve this issue? How to inteligently create components in this scenario?

Thanks for help in advance.

 useThisSpeedSomehow = getComponent<Character>().speed;
 OR
 useThisSpeedSomehow = getComponent<Tree>().speed;
 OR
 useThisSpeedSomehow = getComponent<$$anonymous$$ovableClass>().speed;