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 (-6,9%) - Fastned
$ACC (-5,21%) - Aker Corp
$IOS (+0,84%) - Ionos
$KTN (-6,62%) - Kontron
$NDX1 (-6,05%) - Nordex
$BC8 (-5,92%) - Bechtle
$VOS (-6,16%) - Vossloh
$S92 (-7,42%) - 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