Top 100 noticed papers of the year according to Altmetric
Every year, 2013--2021, Altmetric published the list of top 100 noticed papers.
https://www.altmetric.com/top100/home/
The methodology of the list changed in 2020 -- due to the publication imbalances caused by COVID-19, the top-100 for 2020 in fact consists of 20 top-5 lists for research domains, more details in this press release. 2020 was the last year when Altmetric published its top-100 list, see news here. 2021 list was published separately as part of the discussion around the changing methodology of the top-100 calculation, see this blog post.
2013 -- https://doi.org/10.6084/m9.figshare.5932729.v3
2014 -- https://doi.org/10.6084/m9.figshare.7378310.v1
2015 -- https://doi.org/10.6084/m9.figshare.1613288.v1
2016 -- https://doi.org/10.6084/m9.figshare.4294073.v3
2017 -- https://doi.org/10.6084/m9.figshare.5683957
2018 -- https://doi.org/10.6084/m9.figshare.7441304.v1
2019 -- https://doi.org/10.6084/m9.figshare.11371860.v3
2020 -- https://doi.org/10.6084/m9.figshare.13607312.v2
2021 -- https://doi.org/10.6084/m9.figshare.16974022.v1