I've got up this morning and my RT-N65U seems to be dead. I have 1 blue light on the power LED other than that the wireless 2.4G and 5G blink when powering up for the first time but then go out. The router does nothing different after a reset so I'm looking at replacing it I think

Can someone recommend me the best replacement options? Preferably would like to stick with ASUS but will consider others.
I have infinity just wondering if an all in one modem/router would be a good idea and get rid of the by white modem?
Any opinions on the state of my current router and replacement options would be appreciated please.
Thank you