Good OSTs

Undertale has a variety of different moods between its songs. You have upbeat tracks like Dating Start! There are also songs like Megalovania and Hopes and Dreams at the end of the game that makes the player feel tense as the fight some of the final boss fights in the game

Persona 5 has many great songs that get you going like Life Will Change and Last Surprise. There are also songs that just sound calm like Swear to my Bones.

The Minecraft OST has a lot of nostalgic value for me and probably a lot of others. With nice relaxing songs like Sweden and Chirp that remind every Minecraft player of all of the good times they had playing this game

Pokemon has many good songs that are upbeat like the surfing theme from RSE or Hau's Theme from Sun and Moon. There are also intense themes like Cynthia's Theme or RSE Elite Four Theme