According to "Welt", companies active in construction, rail infrastructure, digitalization and the energy industry are considered to be beneficiaries of the debt pact. So-called green sectors are also likely to benefit.
A few examples:
$FAST (-0,9 %) - Fastned
$ACC - Aker Corp
$IOS (-2,53 %) - Ionos
$KTN (-0,97 %) - Kontron
$NDX1 (-2,52 %) - Nordex
$BC8 (+0,25 %) - Bechtle
$VOS (+0,89 %) - Vossloh
$S92 (-2,92 %) - SMA Solar

Despite all the debt euphoria, however, investors should bear in mind that the infrastructure companies are smaller stocks that are not without risk.
Source (excerpt) & chart: World

