Here is a google scholar search. You can do a similar search on any science publication website (pubmed, etc.).

Here are some specific examples of labs that have stated they have isolated it. This is a small sample of those available. Two are papers, two are statements. I only looked at one of the papers in detail. As a biologist, I am satisfied that it meets a standard of isolation of the virus within statistical significance. Is it the best possible proof ever? Nope, but it doesn't need to be. If it is to be disputed, it must be disputed in the minutia.

The scholar search above has numerous papers with similar stories. Some better, some worse. I haven't looked at them all because I have yet to see a single counter argument that is credible or seems to have sufficient understanding of experimental biology, or even the scientific process in general.

Emerging Pathogens Institute, University of Florida

NIAID’s Rocky Mountain Laboratories

University of the Western Cape (UWC) and Stellenbosch University (SU) (South Africa)

McMaster’s Institute for Infectious Disease Research

Here are electron microscopy images of the virus.

India's first positive test

Cell culture viral isolate

Pictures at various stages of cell/viral body fusion

A close up

This again is a very small sampling of what's available.

There have been many tests on this virus and its effects. It is much more likely that it is real, than that thousands of scientists are all complicit in an elaborate scheme to make it all up.

I believe the scam was not in the existence of the virus, but in how virulent it was. That is a much easier scam to pull off. All you need to do is:

1. create a test that produces a lot of false positives (PCR test with too many cycles: Check)
2. incentivize hospitals to lie (Give each hospital $13,000 for each positive PCR test: Check)
3. incentivize hospitals to kill people (Give each hospital $39,000 for each person put on a ventilator which will kill them: Check).
4. Create hysteria in the population by introducing the virus into the vulnerable population and then setting up the treatment (ventilators) that will kill them (Aging population in Italy was the first credible report of massive amounts of death, along with "Wag the Dog" movies from China, Cuomo, Wolf et al putting infected patients into nursing homes, etc.: Check)
5. Call all other illnesses Covid (Trivally easy with (1) and (2): Check)
6. Reinforce the fear with social policies. This is especially helpful if there is no proof that those policies work as it creates cognitive dissonance (Mask, social distancing and economic shutdown policies are all complete bullshit: Check)

Six steps and I just created a pandemic.

OR

I convince every biology researcher in the world to make up a fake virus AND do those six steps.

Which one do you think is simpler?