President Trump just started a new job. What’s that going to look like? As I browse back over the history of workplace sitcoms, I can see that many of my favorites include one figure — usually it’s the boss, and usually he or she is vain and insecure — who inspires a lot of the big jokes. Here are a half-dozen of them.

“The Dick Van Dyke Show’’: Alan Brady was the puffed-up, irritable, toupee-wearing star of the show-within-the-show, and writers Rob, Sally, and Buddy often had to tangle with his great bit ego. After only seeing him from the back for a few years, we finally got full-face appearances. He was played by Carl Reiner, creator of the series.

“Silicon Valley’’: Erlich Bachman — played with lots of cagey bluster by T.J. Miller — is the guy who developed an innovation incubator in his home that led to the creation of Pied Piper. He’s a blowhard, he’s full of himself, he’s amusingly profane, and he’s almost always within feet of a bong.

“30 Rock’’: Jack Donaghy was Liz Lemon’s boss, and Alec Baldwin deserved all seven of his Emmy nominations (and two wins). Jack was slick, slippery, insulting, arrogant, and unashamedly corporate, and he was a fountain of wisdom. “I do admire Wonka,’’ he once said, referring to Willy. “He’s a true capitalist. His factory has zero government regulation, slave labor, and an indoor boat. Wonderful.’’

“The Office’’: David Brent, brilliantly played by Ricky Gervais, was the middle manager of a paper factory in the British original, later remade in America with Steve Carell. Brent specialized in self-delusion and misguided efforts to be politically correct and liked by his workers. Brent will be back, by the way. Gervais’s movie about him, called “Life on the Road,’’ drops on Feb. 10 on Netflix.

“Veep’’: Selina Meyer is profoundly petty, and pettiness is one of Julia Louis-Dreyfus’s specialties. Imagine Elaine Benes as vice president and then president. Selina is also vain, profane, stupid, self-interested, impatient, and abusive to her codependent assistant, Gary. Occasionally, though, amid all her high anxiety, she let’s loose with a wise quip such as, “If men got pregnant, you could get an abortion at an ATM.’’

“The Larry Sanders Show’’: Larry Sanders was a neurotic mess — just the kind of guy you want to work for. He embodied every bad quality you might imagine in a late-night host — fiercely competitive, driven by insecurity, fake, dependent on others to do his dirty work. He was a later, more detailed iteration of Alan Brady, and Garry Shandling hit every joke out of the park.

Matthew Gilbert can be reached at gilbert@globe.com. Follow him on Twitter @MatthewGilbert.