These are both good options:

https://www.amazon.com/TP-Link-Archer-AX73-High-Speed-Streaming/dp/B08TH4D3QV/ref=sr_1_4?crid=3NT7HHUU38T8Z&keywords=wifi+6+router&qid=1642016980&sprefix=wifi+6+router%2Caps%2C52&sr=8-4

https://www.amazon.com/NETGEAR-Nighthawk-6-Stream-Router-RAX50/dp/B082X17B8P/ref=sxin_12_pa_sp_search_thematic_sspa?crid=3NT7HHUU38T8Z&cv_ct_cx=wifi+6+router&keywords=wifi+6+router&pd_rd_i=B082X17B8P&pd_rd_r=c755a261-7609-4fd0-a389-9227a058d248&pd_rd_w=Osu43&pd_rd_wg=hTtK7&pf_rd_p=4ad71b32-b810-4124-8735-d02a39478d0c&pf_rd_r=ZAV51NSZER3J4BXH41E4&qid=1642016980&sprefix=wifi+6+router%2Caps%2C52&sr=1-2-a73d1c8c-2fd2-4f19-aa41-2df022bcb241-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEzTlUwTEpXNTdFVkVDJmVuY3J5cHRlZElkPUEwMzIzMDY0MjBNMUtLTklYRlg3UCZlbmNyeXB0ZWRBZElkPUEwMTY4NDg5Mk9MNEtOMjFPV1FSUiZ3aWRnZXROYW1lPXNwX3NlYXJjaF90aGVtYXRpYyZhY3Rpb249Y2xpY2tSZWRpcmVjdCZkb05vdExvZ0NsaWNrPXRydWU=

Yeah, you won't use that cable modem, just their fiber jack. Your router is ok, but just ok. If you want excellent speeds then yes, get a WiFi 6 router.

A couple of options that are mid range there is of course much more high end ones:

Nighthawk

Archer