Is tourism as such something that other species would indulge in?
If other intelligences go in for tourism then preferred destinations may be for destinations with similar life forms . However swimming with dolphins is popular as is whale watching. A theoretical land based medium sized octopus for example would have no trouble negotiating our doorways, buildings etc.
If they are trying to look like us then some of them aren’t doing a very good job, they are still different enough to attract attention. In fact the earlier contacts (Adamski era) would attract less attention than greys.
Would tourists be kidnapping and probing the natives at their destination? Tourists here are not allowed to collect seed from wild plants or take pebbles from the beach; sticking probes up people’s bums is right out.
It maybe that space faring races are all based on a four limbed bipedal pattern but that in itself would be interesting. Look at the forms life could have taken on earth – “Wonderful Life” by Stephen J Gould is now a bit dated but gives some idea of evolutionary possibilities.
Alas it is all speculation, if alien intelligences are visiting Earth we have no idea of their motivation. I tend to agree with JBS Haldane who was supposedly the first to say it in 1927. The universe is not only stranger than you imagine but stranger than you can imagine.