Defensive changes are on the cards for Spurs in 2019.
Signed for £8m last year, Foyth is yet to make his Premier League debut.
The Reds are already well stocked with options in midfield.
Richards has not played a competitive match for Aston Villa for two years.
Boasting 76 goals in the Premier League, Giroud would shine with the Toffees.
The Saints have struggled to score goals in the past 18 months.
The 20-year-old has been the Eagles' bright spark this term.
The Reds could have a host of absentees for this weekend's clash against Huddersfield.
The teenager made his first-team debut against Brentford.
Hammer of the Year in 2016-17, Antonio has declined in the years since.
Spurs should aim to beat their arch-rivals in the hunt for his signature.
The Reds are one of three undefeated sides remaining in the top-flight.
Smith has arrived to try and save Villa's promotion hopes.
The Saints look set for another relegation battle this season.
The Toffees have only just started to find their feet this season.