"Ability to buy a house or similar" and "affordable daycare" are probably enough to have a huge impact. We don't need a long list of possible answers.
- Reasonable maternity leave allowances.
- Good affordable (or free) healthcare.
- Good affordable (or free) child care until school age.
- Free education to university graduate level.
- Affordable housing.
The super-rich have no interest in allowing this to happen, so countries where having a child is a significant cost will continue to have low fertility rates.
I don't think you're necessarily wrong BTW but it's not that simple.
The two main hurdles to increasing birthrate are:
1. Convince couples with no kids to have one. 2. Convince couples with two/three kids to have one more.
The list might help but the question is how much for each.