If I remember correctly Reaper uses a subset of Bravura.
https://www.smufl.org/fonts/
On the github page (
https://github.com/MuseScoreFonts/Leland) is noted that:
MuseScoreFonts/Leland is licensed under the
SIL Open Font License 1.1
and it seems it is also SMuFL-compliant.
Sounds like it could be used in reaper, maybe if someone converts it to the Reavura.otf layout... don't know