The best replacement for hash join is merge join.

The best alternatives to hash join are rated as following:
★★★★★  merge join
★★★★  nested loop
★★★  loop join
★★★  nested loop oracle
★★★  sort merge join
★★  nested loop sql server
★★  nested loops
★  nested loop join
  sort join
  merge
  hash join semi

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hash join
merge join
nested loop