Even though the three categories you describe include niches like museum attraction or vehicle piloting in legal niches that still respect humans, a little creativity expands your options for post-ASI work:
1: verbal/literary labour with your vocal cords, or the use of an output tool, to playback existing works in environments where mechanical methods are disallowed,
2: aesthetic labour through precise recreations of other's mental labour in the performing arts,
3: legal labour in acting as an agent to help or hinder existing legal processes in systems that give humans standing,
4: biological labour as a substrate for growing certain transplantable products,
5: smuggling labour (either non-invasive or surgically invasive),
6: political labour to incrementally sway electoral results in any polity where you are still enfranchised,
7: security labour as a canary for infohazards (such as 'diplomat' programs produced by another ASI) inside of a quarantined environment,
8: frontman work as a deniable patsy to enable economic forgery, deception, revenge or warfare by a patron ASI, possibly without your knowledge.
There are plenty of ways to gain some currency token that can pay for your negentropy upkeep costs.