The Magpies have relied heavily on Callum Wilson, with the trio of Joelinton, Dwight Gayle and Andy Carroll not firing on all cylinders – they have six Premier League goals between them this term.
The England international, who has 12 league goals for Newcastle, has struggled with injuries and manager Steve Bruce is eyeing another quality option.
Russell has been one of the most consistent top performers in the Major League Soccer in recent seasons and has caught the eye of scouts in England.
The Scot has 25 goals in 84 games for Kansas since joining them in 2018, and Newcastle could offer him a shot at Premier League football.
The 31-year-old is out of contract at the end of the current American season in December and would be a cut-price option for the Magpies and co this summer.
Fulham and Sheff Utd are eyeing immediate promotion after getting relegated this term, and they will look to add quality and cheap players to their squad.
Russell’s goals could come in handy, but he is likely to prefer finally playing in the English top-flight with the St James’ Park outfit.
The Scotland international has English football experience, having played for Derby County in the Championship.
He could be keen to return to the United Kingdom in the coming weeks after coronavirus-enforced travel restrictions prevented him from playing for his country last year.