Hilariously, you all doing it wrong anyhow.
Go recruit Glut and 'summon' till you are blue in the face.
Dude it’s like you ignore everything everyone has to say and input how great you are at soloing and winning the game.
The OP wants to be able to cast mage hand, have a familiar and cast summon monsters. You can do it in D&D but you can’t in BG3. What has Glut and the broken summon mechanic got to do with this discussion?