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Using multiple routers
(alien.top)
A community to help people learn, install, set up or troubleshoot their home network equipment and solutions.
If your goal is to extend wireless range, you just need to connect from LAN to LAN port and set the new one as Access Point.
If it doesn't have an AP mode in the settings you can manually put it in AP mode.
https://www.cnet.com/home/internet/how-to-turn-an-old-wi-fi-router-into-an-access-point/
But since it sounds like you (OP) hasn't bought anything yet then probably easier to buy an Access Point device instead of another router.
I am building a home-lab so I am wanting to have a second network for the home-lab with out slowing down the family network so I don’t think WAPs are a option.