It's hard enough finding Postgres SAs these days as it is!
That only seems to be true for places unwilling to pay reasonable amounts of money.
And by "reasonable" I'm not meaning Oracle Consultant $US3k+/day either. ;)
Generally I try and steer them to either the PostgreSQL jobs mailing list (https://www.postgresql.org/list/pgsql-jobs/), or if they have specific needs then I'll steer them to appropriate people (if known).
Of the people that contact me... some are Weird (not in any positive way). When I ask them how much they're looking to pay (even roughly), they either avoid answering that point, go silent completely, or just do other strange stuff.
Those ones don't get put in contact with anyone. Not sure what they think they're doing, but wasting people's time isn't on.