The best way is to run the level 4 Amarr Epic Arc, half way through it there will be an option to switch sides and complete it for Sansha which gives +10% base Faction Standing increase (+12.5% with Social 5 trained)
https://eve-survival.org/wikka.php?wakka=RightToRule4p1
You can also gain derived positive standings with Sansha by completing missions for Guristas Cosmos Agents.
For more info check out ‘The Plan’…
FACTION STANDING REPAIR PLAN
Right Click Link And Select ‘Open Link In New Tab’
Please Note
‘The Wayback Machine’ is used to access info contained in the discontinued Evelopedia. Skip Redirect Browser Add-on’s need to be disabled. After the ‘Faction Standing Repa…
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