I found the human genome alignment sets here: https://www.ensembl.org/info/genome/compara/multiple_genome_alignments.html
but they doesn't include, for example, ancient human genomes, e.g. those here: https://reich.hms.harvard.edu/allen-ancient-dna-resource-aadr-downloadable-genotypes-present-day-and-ancient-dna-data
or, for example, any of the other 'pan genome' whole genome alignments here: https://humanpangenome.org/
However, those latter two resources don't include whole genome alignments...
About 10 years ago I remember reading a paper that used 'lots' of genomes to uncover novel features using different patterns of conservation, demonstrating the power of the approach.
Have I missed a new, more up to date, whole genome alignment resource?