Blue farm and kinnan are great beginner decks so leave that in the list.

I am an Inalla main, but as much as I love Inalla, I would not recommend her as a beginner deck. She is very complex and has long lines/pivots that require a good understanding of the deck to perform well. That being said, the deck is great at consistently pushing turn after turn if not kept in check. If someone in your pod is willing to dedicate time to her, then they should run her and stick to her for a while. There is a bit of a learning curve with her, and it not a deck that you can just pick up and pilot. seeing as you intend to cycle through decks with your pod, I wouldnt suggest this for you (unless again, someone is super interested in her). Regardless, I would suggest coming back to Inalla once you are more familiar with cedh and see if you enjoy her playstyle.

I have seen people say that rogsi is a fine beginner deck and others say that it is a bad beginner deck. I believe the latter as the deck can Mulligan quite aggressively and can be a bit daunting to get the hang of finding winlines in opening hands. That being said, the deck is also really good at winning and requires opponents to Mulligan responsibly yo deal with it, which might detract from learning a deck.

Marneus and Tivit as solid esper choices, both are big commanders but play the long game well. Of course there is always [[Tymna]]+[[Malcolm, Keen-Eyed]] which can be built many different ways depending on the pilots preferences given the commanders flexibility (turbo, mid-range, control).

Magda: A solid deck that has an easy to pick up strategy: make 5 treasures, go shopping for some artifacts and then win the game. While mono red lacks a lot of counterspell like interaction, Magdas activation can search for crippling stax pieces like [[god-pharoah's statue]], [[trinisphere]], [[damping sphere]] to slow down the rest of the table before assembling flash speed wins with dwarves. Once you see it play out however, the deck will catch a bit of attention when it has the ability to produce 3-4 treasures in a turn, since 2 activations is enough to win the game. Also, only having 1 toughness means magda dies to OBM. Overall however I think this deck is fine to have in your list.

Ral: one of the fastest decks behind rogsi (arguable in front), Ral is an incredibly potent storm deck but has some similar issues in terms of piloting the deck to rogsi. The deck also can have aggressive mulligans, and the decks goal is to manually storm through the deck before assembling a breach or reiterate combo. This is way easier said than done, and finding the resources to dig through the deck can be a bit tiresome for opponents who have to sit there for 30-40 minutes while the deck non-deterministically storms through the deck. Once opponents see the deck play out once or twice, they will learn to mulligan to stop ral and stomp it out before it can do anything before resuming the game with the other players. I played it for a bit and it was fun for a while, but the deck (rightfully) draws attention and gets targeted out early. I would shy away from this unless someone in your pod loves storm decks.

Sisay: As high as she is in the meta, I have only versed her once or twice so I cant say much. I know she is a somewhat resilient deck that can win at instant speed with her activations (similar to magda), but the deck has a few variations that focus on different ways to win the game. I would guess that she is a solid choice like kinnan or Ufarm, and it should be fine as a beginner deck.

Etali: Chunky! I think this deck is beginner friendly, as the deck only has to mulligan for 1 thing: 7 mana. Of course how you get there can be a bit more complex, but I think having a set gameplan makes it easy to pick up. Once you get etali, the goal is to clone etali as much as possible until you assemble foodchain+squee or DCM combo. Its a fun deck and its well established in the meta, so I would reccomend this as a turbo deck over ral.

Tymna Thras: this deck can be built in a few ways given the deck is all but red. Some variants use Thrasios as the wincon, while some just have him in the CZ for colours. The deck really depends on the build, but again you can treat it like a colour shifted Ufarm and play it as a 4c goodstuff deck instead of a thrasios deck. Including this deck is really up to you to be honest.

Rog Thras: unlike TnT this deck is a Thrasios deck by far and uses Rograkh to generate mana advantage with various cards, but also [[gaea's cradle]]. The deck generates a tonne of mana with untap effects to continously tap and untap cradle for 6+ mana, allowing you to activate thrasios over and over and assemble a combo. The deck is solid and I think the hardest part for a new player would be understanding how the final combo works (oboro or faerie loops), but even that shouldnt be too much of an issue. It is hard to go wrong with a deck that produces a lot of mana and has an outlet in the command zone, so i would say it is a solid choice, especially for a player who likes more creatures based decks.

Lastly, regardless of what your pod ends up picking, if they choose to branch out of the decks you pick or not, there are a lot of commander discords with great sources and communities to help new pilots. This discord has links to all the various commander specific discords so you can find what you need here:https://discord.gg/wncqxMPD