The short answer is no, but there's more to speeding up your home internet than just tweaking your router or modem.
Home wireless routers can be connected to each other via Ethernet cable the same as wired routers. Connecting two home routers via wireless is also possible, but in most configurations the second one will only be able to function as a wireless access point instead of a router. What's the best way to connect two routers to one modem Jun 10, 2008 I want to connect 2 Wi-Fi routers to create 2 separate Jun 27, 2020 Two routers from one line? — Digital Spy You can also get ADSL modems (which don't have a built in router) and separate routers which can be plugged into the modem like what Virgin do with their cable modem and router. Now it isn't possible to connect two router/modems to a single line but you can connect one modem and two or more routers to the modem.
Using 2 wireless Routers - Verizon Fios Community
May 12, 2020 Will a Better Wi-Fi Router Increase Internet Speed? Jul 23, 2020
Solved: Separate Networks on One Modem, Two Routers
Connecting Two Routers Within One Network: Boosting Wi-Fi Jul 29, 2019 Connecting 2 routers to 1 modem - January 2018 - Forums - CNET Jan 10, 2018 How to Run Two Routers Off One Cable Connection | Small