Harlequins have agreed deals to sign Worcester’s Simon Kerrod, Exeter’s Tom Lawday and Cornish Pirates’ Toby Freeman at the end of the season.
South Africa-born prop Kerrod, 26, joined the Warriors at the start of 2017-18 from Jersey Reds.
Number eight Lawday, 25, made his Chiefs debut against Quins in the Anglo-Welsh Cup in November 2016.
Lock Freeman, 31, is in his second spell with the Pirates after stints with Rotherham and Nottingham.