Based on the "Main candidates" section of https://en.wikipedia.org/wiki/2019_Belgian_federal_election (revision 898947772)
Dutch-speaking constituencies
Christian Democratic and Flemish
Servais Verherstraeten
Pieter De Crem
Koen Geens
Wouter Beke
Hendrik Bogaert
Sabine de Bethune
Groen
Kristof Calvo
Stefaan Van Hecke
Jessika Soors
Barbara Creemers
Wouter De Vriendt
New Flemish Alliance
Jan Jambon
Anneleen Van Bossuyt
Theo Francken
Zuhal Demir
Sander Loones
Elias Kartout
Open Flemish Liberals and Democrats
Christian Leysen
Alexander De Croo
Maggie De Block
Patrick Dewael
Vincent Van Quickenborne
Mimi Crahaij
Workers' Party
Peter Mertens
Steven De Vuyst
Bea Knaepen
Ayse Yigit
Ilona Vandenberghe
Socialist Party Different
Yasmine Kherbache
Joris Vandenbroucke
Karin Jiroflée
Meryame Kitir
John Crombez
Flemish Interest
Tom Van Grieken
Barbara Pas
Dries Van Langenhove
Annick Ponthier
Wouter Vermeersch
French-speaking constituencies
Humanist Democratic Centre
Catherine Fonck
Vanessa Matz
René Collin
Maxime Prévot
Olivier Vanham
Joëlle Milquet
Democratic Federalist Independent
Alexandra Dupire
Pierre-Yves Dupuis
François De Smet
Ecolo
Jean-Marc Nollet
Sarah Schlitz
Georges Gilkinet
Simon Moutquin
Zakia Khattabi
Reformist Movement
Charles Michel
Didier Reynders
People's Party
Socialist Party
Elio Di Rupo
Frédéric Daerden
André Flahaut
Ahmed Laaouej
Workers' Party
Marco Van Hees
Raoul Hedebouw
Thierry Warmoes
Maria Vindevoghel