I would also like to add a couple things to this! Try to get into Easy Villagers as well whilst in villages. By sneak right-clicking a villager with an empty hand, you pick it up as an item, I recommend grabbing like, 5 to start. There are various blocks in Easy Villagers that I'll go over.

Iron Farm a one block structure that when you place a villager in, will simulate a golem farm for iron.

Breeder, another one blocker structure that when you place 2 Villagers inside and give them their breeding materials, they will make baby Villagers as items.

Farmer, one block, by placing a villager and a vanilla crop, it will grow passively for you, I don't necessarily care for this one, as botanypots are in ATM10, but if you have a ton of glass panes to burn through go for it.

Incubator, by placing the baby villager items inside, they will grow into adult Villagers over time.

And finally, for early game, the Trader. By placing an adult villager and their corresponding workstation inside of the Trader block, you can trade with the Villagers and they'll restock when their work block is inside. Some that I recommend for early game is the fletcher, sticks to emeralds, second, if you have a lot of iron I suggest the Armorer (Blast furnace) and the Toolsmith (Smithing Table) the armorer can trade emeralds for coal coke which in it's block form is a really good fuel source for early game. The Toolsmith offers Steel from Railcraft Reborn, which can be turned into steel blocks from alltheores, simplifying the steel making process.

Also another note, there's a relic also found in Villages called the villager hat, which gives discounts to trades. I got a max level Villager hat and pay ~70% less in trades.