the hotel we are staying at partners with;
https://www.caboseasons.com/Haven't used them yet so can't comment, but I typically use a hotel rec over random google search.
Last time we used
www.airportbajatransfers.com, solely because they had an option for a 1 hour stop, which we used to get some things at a grocery store (weren't staying at AI) They also had a booster seat option.
The give an email with pictures of what to look for and where to go at the airport to make it very easy and straightforward.
Had no issues other than we arranged for private, and at airport there was confusion and we had a lovely older American couple that ended up riding with us.
They refunded half my money if I remember, so that was fine by me.