These Schubert song arrangements for high voice and guitar and for low voice and guitar are available as bundles or separately.
To find the low voice bundle or any of the individual songs for high or low voice please use the following SO. references in the Sheet Music Plus search bar:
Individual songs (high voice)
An die Laute
S0.45061
Der Fischer
S0.45065
Du bist die Ruh in C
S0.45069
Du bist die Ruh in E flat (guitar capo on 3rd fret)
S0.668911
Heidenröslein
S0.45075
version with simplified guitar part
S0.45073
Heil'ge Nacht - Nacht und Träume
S0.45079
Ständchen - Leise flehen meine Lieder
S0.45083
An Silvia - Wer ist Silvia
S0.45091
To Sylvia - Who is Sylvia
S0.45087
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Bundle of the following songs for low voice:
S0.907167
Individual songs (low voice)
An die Laute
S0.45059
Der Fischer
S0.45063
Du bist die Ruh
S0.45067
Heidenröslein
S0.45071
Heil'ge Nacht - Nacht und Träume
S0.45077
Ständchen - Leise flehen meine Lieder
S0.45081