There is no possible way for anyone on the forum to respond to this question.
It depends on so many considerations:
- Level of technical expertise
- Size of property to be covered
- Intended use (gaming? streaming? "general use"?
- Type and speed of internet connection(s)
- What there is to connect
This sounds like an opportunity to (a) read a bunch of articles on "WiFi systems for 2020" and (b) call upon a freind or acquaintenace who will be most likely to help out with whatever solution you settle on.
