Here is a list of popular Canadian REIT ETFs:

Title
REIT.TO – Invesco S&P/TSX REIT Income Index ETF
IDR.TO – Middlefield REIT Indexplus ETF
HGR.TO – Harvest Global REIT Leaders Income ETF
RIT.TO – CI First Asset Canadian REIT ETF Common
VRE.TO – Vanguard FTSE Canadian Capped REIT Index ETF
HCRE.TO – Horizons Equal Weight Canada REIT Index ETF
ZRE.TO – BMO Equal Weight REITs Index ETF
XRE.TO – iShares S&P/TSX Capped REIT Index ETF