I am a PF2E GM with Foundry and it's REALLY good for PF2E.
What I use
-
https://paizo.com/community/blog/v5748dyo6si7j?Pathfinder-Bestiary-Token-Pack-for-Foundry-VTT
This token pack cost around $60 USD. But in my eyes completely worth it. The art is amazing. -
https://goblinfight.club/ Encounter balancing
-
Dungeon Alchemist Available on steam and my favorite map making software. I've used it to make maps very quickly.
Modules
-Universal VTT Importer.
-Tokenizer (fast token image updating)
-Dungeon Draw (on the fly dungeons and maps)
-Dice so Nice
-Dice Tray
-Group Initiative (select all tokens and have them ready for initiative)
-Monk's Combat Marker
-Your Turn!
-Pathfinder UI V3 (just looks cool)
-PF2E Drag Ruler Intergration (Will need the Drag Ruler Module as well)
-PF2E animations (if you like to see the animations)
-Pathmuncher (for quick initial builds from Pathbuilder)
-PF2E workbench
-Quick Insert
For music there are various free modules you can use with Foundry. Just search music.