I'm sure I had commented on past thread like this but....
The application of Pokemon in human life can be
BIG. Just on medicine, for example, a specially trained Luxray
?'s (fantasy) X-Ray vision can be alternate Rontgen/other medical imaging modality minus the drawbacks (as far as we know, hence "fantasy"). Fairy-types, especially those who thrives in spreading happiness like Togechick and Togekiss, and Blissey, can work in hospice cares, improving patients' QoL.
Ever since Alola though, I imagine riding Pokemon, especially certain big ones like Metagross, will require a "riding licence" like car driving licence, ensuring safety that your ridden Pokemon won't get into a rampage. Just imagine them and their riders fighting on road, that's not pretty.
I haven't watched Det. Pikachu, put have seen some trailers. There we can see how they can be integrated to daily lives. Machamp works as safety road officer, and it may make sense with its power against (badly driven) cars while having human build suitable to do human works like helping people cross roads. Fire-types for cooking is obvious, even forest bar Oranguru in anipoke has one.
Now what's to worry is evil underworld organizations like mafias. Since this is real life, I imagine the likes of Team Rocket has even more inhumane crimes under their belt and may even employ them as
assassins. Alolan police's excuse of being weak because it's peaceful is unacceptable when you have magical creatures capable of fantastic feats, usable for evil too.
Oh, and reminder
NOT to charge your gadgets with Electric-types unless you have suitable electric transformer first, because you don't know if they would make your phone explode instead as they may not supply suitable electric currents like specified by their chargers.
Metagross, the portable supercomputer. Why do complex calculations when you have a Metagross?
This will require us to have complex understanding to
its "language" first though, but that's not too farfetched. I imagine some scientists would have already found a way with it like they do RotomDex. Maybe with some kind of special communication cable to connect with computer display.
After lots of research on that, Google may be employing them as servers.
I was also thinking that if you had a Goomy you could throw it at people. It would work well since Goomy is soft and likely wouldn't take much damage from high impact tosses.
People already do that with Pyukumuku lolww (there's one tourist doing this in Hauoli beach, and I remember anipoke has young Gladion chasing Lillie with those on hands at beach in flashback too.)