Hello,
Today, we recommend a very good little router that performs well, and is secure by default without the need for knowledge.
Suffice to say that the routers provided by the suppliers are inefficient and not very secure.
So, for almost 65 €, opt for a router with excellent value for money, the Tp-link TL-R605 :
https://www.tp-link.com/en/business-networking/omada-sdn-router/tl-r605/
Strong points :
2 access providers can be connected in order to automatically change if one no longer works
multiple VPN access methods
good firewall security and excellent performance with quad core processor using 128 MB integrated RAM