As the manifesto are not released yet. At best it will be a guess.
Week or so you may start seeing 2019 sites updating. As they get ready for release.
But honestly. Most folks will be looking at voting against the tories. Rather then voting for policies.
FPTP tends to punish idealised voting. And the current polling makes it clear removing tories is more important then specific policies to most voters. So it is very likely tactical voting will be the bigger site motivation this time.