YeastMatch

Substitute for Saaz (Saazer): hops like Saaz (Saazer)

Saaz (Saazer) (Czech Republic)

If you cannot get Saaz (Saazer), this is the closest hop and what changes in the beer.

Close, with a caveat. Tettnang (Tettnanger) is the nearest substitute for Saaz (Saazer), but the aroma shifts.
Substitution
Saaz (Saazer) (Czech Republic)
Tettnang (Tettnanger)

Original hop vs substitute

Out ofSaaz (Saazer) (Czech Republic)
Closest substituteTettnang (Tettnanger)
Original alpha acid1.4 to 7.5 %
Original myrceneup to 33.7 %
Original aromaSpicy and woody, with tarragon, lavender and cedar, plus floral elderberry, rose and camomile and a honeyed sweetness

Notes

Out of Saaz, Tettnang is the closest noble substitute, from the same Saaz group with a similar spicy-floral aroma.

Tettnang is a touch softer and more floral; Hallertauer Mittelfrüh is the German alternative. None is high in alpha, so keep to many small aromatic additions rather than one big charge.

What to buy instead

Related

Sources: BarthHaas Saazer (Saaz) hop variety profile · BarthHaas Tettnang Tettnanger hop variety profile · BarthHaas Hallertauer Mittelfrueh hop variety profile