In fact, we think that, despite the size of the decks, learning how to play Commander is the best starting point for people looking to play MTG with more players
I love Etrata, the Silencer

Akiri, Line-Slinger Akroma, Vision of Ixidor Alena, Kessig Trapper Alharu, Solemn Ritualist Alisaie Leveilleur Alphinaud Leveilleur Amy Pond Anara, Wolvid Familiar April O'Neil, Live on the Scene Ardenn, Intrepid Archaeologist Armix, Filigree Thrasher Bebop, Skull & Crossbones Blaring Captain Blaring Recruiter Blue, Loyal Raptor Brallin, Skyshark Rider Breeches, Brazen Plunderer Brinelin, the Moon Kraken Bruse Tarl, Boorish Herder Bruse Tarl, Boorish Herder Cazur, Ruthless Stalker Chakram Retriever Chakram Slinger Dargo, the Shipwrecker Donatello, the Brains Eligeth, Crossroads Augur Esior, Wardwing Familiar Evie Frye Falthis, Shadowcat Familiar Francisco, Fowl Marauder Frodo, Adventurous Hobbit Ghost of Ramirez DePietro Gilanra, Caller of Wirewood Glacian, Powerstone Engineer Gorm the Great Halana, Kessig Ranger Haldan, Avid Arcanist Ich-Tekik, Salvage Splicer Ikra Shidiqi, the Usurper Impetuous Protege Ishai, Ojutai Dragonspeaker Ishai, Ojutai Dragonspeaker Jacob Frye Jenny Flint Jeska, Thrice Reborn Kamahl, Heart of Krosa Kamber, the Plunderer Kediss, Emberclaw Familiar Keleth, Sunmane Familiar Keskit, the Flesh Sculptor Khorvath Brightflame Kodama of the East Tree Krark, the Thumbless Kraum, Ludevic's Opus Kraum, Ludevic's Opus Krav, the Unredeemed Kydele, Chosen of Kruphix Laurine, the Diversion Leonardo, the Balance Ley Weaver Livio, Oathsworn Sentinel Lore Weaver Ludevic, Necro-Alchemist Madame Vastra Malcolm, Keen-Eyed Navigator Merry, Warden of Isengard Miara, Thorn of the Glade Michelangelo, the Heart Mothers Yamazaki (playtest) Nadier, Agent of the Duskenel Nikara, Lair Scavenger Numa, Joraga Chieftain

A third and final copy for sale is from the deck that made the semifinals of the Magic World Championship in 1999 as part of Matt Linde's mono-green stompy deck, but this is selling for under $400
Start either from a big idea (I want to cheat fatties from the graveyard) or from specific cards/commanders you love
these will be removed for cards that are more impactful