You might've seen this already, it's not peer reviewed but here's a paper with Norman Fenton where they found a correlation of mortality spikes with vaccine rollout - https://www.researchgate.net/publication/356756711_Latest_statistics_on_England_mortality_data_suggest_systematic_mis-categorisation_of_vaccine_status_and_uncertain_effectiveness_of_Covid-19_vaccination
You might've seen this already, it's not peer reviewed but here's a paper with Norman Fenton where they found a correlation of mortality spikes with vaccine rollout - https://www.researchgate.net/publication/356756711_Latest_statistics_on_England_mortality_data_suggest_systematic_mis-categorisation_of_vaccine_status_and_uncertain_effectiveness_of_Covid-19_vaccination