I am trying to learn about the maxium lean angle of a road bike. I'm looking for measurements and comparisons.
There absolutely do exist tables of tire friction coefficients; see here for an example -- but friction coefficients may not be exactly what you're looking for.
I don't know of any specific tables that measure lean angle and here's why: we do know some of the factors that affect rolling resistance. They include tire construction materials, type (tubeless, tubular, or clincher), tire width, tire pressure, road temperature, road surface, inner tube material (butyl or latex), rider weight, and, because of interactions between road surface and these other variables, sometimes speed. Because these affect rolling resistance, they will also affect maximum lean angle.
Many of the tables that show rolling resistance coefficients were measured under controlled conditions in a lab, using rollers of known diameter and known surface (smooth or bumpy) driven at a known speed. However, some tables are calculated from field tests on real roads. Although the roller test values and field test values may differ, comparisons made by those who have done both show that the relative ranking of tires is almost always preserved (that is, if tire A has lower resistance than tire B on rollers, it almost always has lower resistance than tire B on the road).
Measuring rolling resistance is possible for interested riders, but it's not easy. It's akin to measuring aerodynamic resistance -- in fact, if one is doing field tests outdoors on real road surfaces, the common methods of measuring aerodynamic drag also provide a measurement of rolling resistance drag. The easiest method for outdoor field tests uses an accurate and precise power meter available but it is also possible to do without a power meter (though at greater effort and time). That said, if you have a power meter and a set of rollers with a front wheel stand, you can measure tire rolling resistance yourself, without the complication of the aerodynamic drag component.
I had to dig through my senior year single track vehicle knowledge for this one. It's a little confusing but mathematically the maximum lean angle of a bicycle is theoretically 45 degrees regardless of tires or anything else really. Here is a picture of the math:
Since the largest value possible for inverse sine is 1 the largest possible lean angle would be 45 degrees. This makes sense because if you tried to pull a leaning bicycle upright from the tire contact patch, as soon as you reached 45 degrees this would become impossible.
Yes, MotoGP achieve lean angles of 60+ degrees but there are affects such as angular momentum to take into account and are beyond the scope of this answer.
In terms of tire friction coefficients, these change over the different slip angles and camber angles, the same tire could have many different coefficients based on different angles, speeds, temperetures, pressure, wheel widths, surface conditions and many other factors.