Aer Lingus is offering a new promotion, you will get up to a 45% bonus if you purchase Avios.
The maximum you can buy is 290'000 Avios for 3565€, and they have to be bought until November 15, 2020.
Aer Lingus Avios can also be transferred to your British Airways account, while there are as well some good uses of Iberia Avios.
Some people had some troubles with transferring their while in a household account. But there's a solution for that too:
As often with those promotions, we do not recommend buying points or miles without having a redemption in mind in the near future.