Maxar has released imagery from after the explosion, see here: https://www.bbc.com/news/world-middle-east-53668493#news_idt__image-slider__Beirutsatellite

I don't know if these images are licensed for use in OSM, though.

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Many of the buildings around the port have been tagged as building=ruins. I suggest tagging these as destroyed:building=* instead, as there are no visible ruins left – as far as I can tell from photos. See wiki: https://wiki.openstreetmap.org/wiki/Lifecycle_prefix#Stages_of_decay_2