D-Link
"If any of those routers are under 10 years old"
Oh, some of those are ancient, over 10 years old, but DIR-866L - a fairly modern 802.1ac wireless router shamelessly modeled after the dustbin Mac Pro - was introduced in late 2014 and still available from resellers.
Fast, Good, Cheap - pick two. In D-Link's case, just pick Cheap.