We've made some changes to our political ad trends platform to make it easier to find data for forthcoming elections. Tracking over 100k Meta and Google advertisers with it.
trends.whotargets.me
https://trends.whotargets.me
Trends from Who Targets Me tracks political online ad spending, targeting and content from 109,592 Meta and Google advertisers from 831 parties and groups in 53 countries. The data is automatically updated daily.