Here are the most popular alternate commanders from these lists (according to EDHREC): Zaxara, the Exemplary (Enhanced Evolution) Xyris, the Writhing Storm (Arcane Maelstrom) Haldan, Avid Arcanist // Pako, Arcane Retriever (Arcane Maelstrom) Several of the other new cards show up in more niche strategies, though these are the most impactful from Commander 2020
If you do, when that creature enters, create a 1/1 token copy of it.) Legendary Creature - Bird Bard Commander (CTRL to add secondary) Burn Burn (CTRL to add secondary) Draw Arthur, Marigold Knight Haste Whenever Arthur and at least one other creature attack, look at the top six cards of your library
The fact that it gets around indestructible is a nice bonus
With Abyss Proxy Shop, you can play with Volraths Stronghold and every legendary Commander staple you need all without spending a fortune
On the other hand (as I mentioned a moment ago), I don't think Wizards can reprint the fake-card problem away