How many current future hall of famers are currently in the NBA?

Let’s see, here are all the guys who i think will be HOFers (first ballot or not, in no particular order)

1. Lebron James
2. Steph Curry
3. Kevin Durant
4. Kawhi Leonard
5. Klay Thompson
6. James Harden
7. Chris Paul
8. Russell Westbrook
9. Paul George
10. Giannis Antetokounmpo
11. Joel Embiid
12. Ben Simmons
13. Pau Gasol
14. Dwayne Wade
15. Dirk Nowitzki
16. Vince Carter
17. Rajon Rondo
18. Damian Lillard
19. Blake Griffin
20. Dwight Howard
21. Kyrie Irving

so.. at least 21