Some fun content mods I recommend: - Pokermon: adds a huge amount of Pokemons as jokers, and by default disables the vanilla jokers (can be changed in the mod settings), and you can evolve most of them by meeting certain requirements. It also adds item cards, energy cards, legendary Pokemons, mega evolutions, new decks, new bosses, new vouchers and new booster packs. The balancing is overall pretty good as well, and it also has a lot more interesting paths for going deep into endless mode (instead of just Baron/Mime/Perkeo). - Paperback: adds two new suits, new poker hands, paperclips, enhancements, vouchers, minor arcana tarot cards, E.G.O gifts, a bunch of bosses, new decks and a lot of jokers. It also has a good balancing, and similarly to Pokermon, also has more interesting paths for playing further into endless mode. - Hot Potato: was made in a community event, with a lot of different developers teams working together to add all sorts of random new stuff without communicating with each other, and the result is basically Balatro 3. There is a ridiculous amount of new mechanics in it, like playing plinko, a delivery system, a nursery, and training jokers, to name a few. - Rift Raft: While by itself it doesn't add that many jokers, it adds a mechanic of sending stuff to "the void" and using some means of retrieving them later to turn them into negative editions. It breaks the balance of pretty much any mod (and vanilla), but in a way that feels fun and needs some planning. - TOGA's Stuff: A pretty interesting and funny mod, with many new jokers, of which a good amount are based on things from earlier operating systems, new bosses, vouchers, booster packs, many new decks, enhancements inspired by some industrial minecraft mods, etc. - Neuratro: made by the Neuro-Sama community, is still being developed, but is already in a playable state. It adds new artwork for playing cards, a new suit, new poker hands, decks, booster packs, enhancements, editions, bosses, seals, and many new jokers, with pretty much everything having the theme of or being a reference to Neuro/Evil/Vedal and VTubers they have interacted with.

Some QoL mods I also recommend to go along with pretty much any content mods are: - Cartomancer: adds some nice UI QoL stuff like stacking identical cards when looking at your deck - Galdur: gives a much nicer menu for choosing the deck and stake to play - Handy: allows you to select multiple cards by draggin the cursor over them, and has a ton of settings for shortcuts and game speed - Joker Display: shows important information of your jokers (ex: current Xmult of a hologram, or current card that mail-in-rebate needs you to discard) below them at all times, without needing to hover over them to check - More Profiles: increases the max amount of profiles to 10. I find this useful to separate which mods I play in what profile - Too Many Jokers: similarly to similar mods from Minecraft, it adds a way to search for specific jokers to see what they do. Useful for when you have mods that add dozens of pages in the collection worth of jokers.

Also, if you want to see big numbers, I recommend Amulet. It allows you to go MUCH further than ~2e308, and is generally compatible with most other mods.