Create: Valve Handles, Toolboxes, Nixie Tubes (right clicking with dye) and Seats.
Create Deco: Shipping Containers and Placards.
Create Steam 'n' Rails: Conductor's Caps and Locometal.
Create Numismatics: Cards and ID Cards.
Create Interiors: Chairs and Floor Chairs.
Scholar: Writable Books and Written Books.
Supplementaries: Flags, Presents, Trapped Presents and Candle Holders
Supplementaries Squared: Sacks and Gold Candle Holders.
Amendments: Hanging banners,
Sleep Tight: Hammocks.
Snowy Spirit: Gumdrops and Glow Lights.
Domestication Innovation: Pet Beds.
Alex's Mobs: DD Carpets on Elephants
Alex's Caves: Radon Lamps.

Please note some if not all of these are available on the latest fabric version, but not on forge yet.

Can also add:
Botany Pots: Terracotta, Concrete, Glazed, Hopper versions of them
Botany Pots Tiers: Elite, Ultra, & Creative Tiers of Terracotta, Concrete, Glazed, Hopper versions
Cooking for Block Heads: Kitchen floor & Oven
Immersive Engineering: Sheet Metal Block & Slab

adding dice (fabric port) [i havent checked the forge version]
https://modrinth.com/mod/dice-(fabric-port)

1.20.1 Fabric compatible Mods：
Supplementaries

incompatabilites mods：
waystones
Comforts
Create
Create Interiors
Create Steam 'n' Rails (Only show in REI)
Scholar

Forge 1.20.1 incompatibilities, also add to the list -
Comforts: Hammock and Sleeping Bag
Connected Glass: everything
Create Numismatics: Cards
Waystones: Colored Sharestones
Reliquary: Pedestals

Is there anything we can do to help other than report incompatible mods?