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Park's #50 is the most popular quench oil for high carbon steels. It is a "FAST" oil. It is NOT heated, and used at ambient temps of 60-100°F. I recommend two gallons of Park's #50 as the best all-around quenchant.
Other quench oils are normally heated to 120-130°F.
Hobbyists who make normal size blades up to 4" long by 1/8" thick can use canola oil. It is warmed to 120-130°F.
For very fast quench steels, like W2, a brine quench is used by some smiths. This is a very fast and violent quench and may break/crack the blade. It is not recommended for new smiths. The salt/water mix is warmed to around 100°F.
Put your quench oil in a tall tank that allows the blade to be fully quenched. An 18" section of 4" steel pipe welded to a 12X12" steel plate makes an excellent quench tank. Many found objects can serve as a quench tank as well. Old soda tanks, tall thin buckets/cans, old fire extinguisher shell, ammo cans, ..... etc.
Whatever you use, make a lid for it to keep critters/rain/trash out as well as to stop a flare-up. The cause of a flare-up is not putting all of the blade and end of the tongs under the oil surface. Getting the tongs too hot is the biggest issue.
