What are some of your best tips or QoL changes to finish off a database before starting a Save?

[CurnRaisin]

So I'm getting ready to start a save on my custom Irish league system and before I start I'm wondering are there any tips or quality of life changes that can be made to make custom leagues more sustainable/fun for long saves.

I'll start off with saying, add in some awards to any freshly created divisions or those without any. Even if it is only a set of awards covering a regional tier with 3-4 divisions in it. It makes those lower leagues feel that little bit more alive when managing in them.