Some deleted scenes and trailers for the home release of Solo are appearing on the official ‘Star Wars Movies’ facebook page, here:-
https://www.facebook.com/starwarsmovies/
In the US it’s being released on Digital on 14th September - and on blu ray, dvd, 4k etc on the 25th September.
In the UK it’s being released on Digital on 17th September - and on blu ray, dvd, 4k etc on the 24th September.