I check every now and then, but there don't seem to be many options to get a discount on FindMyPast.
However back in Sep 2019, I received an email from FindMyPast "80 years on, £80 access", with an unbeatable 50% discount offer (very likely a one off). So I immediately re-subscribed for £80 for the top tier for one year. Since it's expiry I have waited patiently in case of similar deals, but nothing has arisen, so I haven't re-subscribed to FindMyPast. In my opinion your really need access to newspapers (which the deal included), so the non-discount subsciption is a cost of £180, that's quite a lot of money! For casual researchers it's a big ask.