In the English Grammar Profile, there are many points dealing with basic pronouns at the A1 level.

1 ‘I’, ‘you’, ‘he’, ‘she’, ‘it’, ‘we’ and ‘they’ in the subject position before a verb in statements.

2 ‘it’ before ‘be’ to refer to a first-person speaker or writer.  “It’s me.

3 ‘it’ as a direct object to refer to an object or situation already referred to.

4 pronouns ‘you’ and ‘it’ after ‘be’ in question forms.

5 ‘me’, ‘you’, ‘him’, ‘her’, ‘it’, ‘us’ and ‘them’ in the object position after prepositions.

6 ‘I’, ‘you’, ‘we’ and ‘they’ after an auxiliary or modal verb in question forms.

7 ‘me’, ‘you’, ‘him’, ‘her’, ‘us’ and ‘them’ in the direct object position after a transitive verb.

An iWeb corpus search for _PP

1 YOU 131195403
2 IT 123808427
3 I 117421355
4 WE 50436220
5 THEY 45648999
6 HE 38611656
7 THEM 21834090
8 ME 16622562
9 SHE 15797745
10 US 10357927
11 HIM 9681861
12 HER 4500048