| Relationship Forums | 28 | Get Spreadsheet |
| Real Estate Forums | 12 | Get Spreadsheet |
| Running Forums | 16 | Get Spreadsheet |
| RV Forums | 29 | Get Spreadsheet |
| Raspberry Pi Forums | 12 | Get Spreadsheet |
| Roofing Forums | 11 | Get Spreadsheet |
| R Programming Forums | 6 | Get Spreadsheet |
| Radiology Forums | 4 | Get Spreadsheet |
| Reptiles Forums | 12 | Get Spreadsheet |
| Rabbit Forums | 12 | Get Spreadsheet |
| Religion Forums | 8 | Get Spreadsheet |
| Rolex Forums | 7 | Get Spreadsheet |
| Reef Forums | 19 | Get Spreadsheet |
| Range Rover Forums | 17 | Get Spreadsheet |
| Rugby Forums | 15 | Get Spreadsheet |
| Ruger Firearms Forums | 8 | Get Spreadsheet |
| Revit Forums | 5 | Get Spreadsheet |
| Radio Forums | 50 | Get Spreadsheet |
| Recipe Forums | 32 | Get Spreadsheet |
| Reloading Forums | 25 | Get Spreadsheet |
| Rod Building Forums | 16 | Get Spreadsheet |
| Retirement Forums | 14 | Get Spreadsheet |
| Robot Forums | 11 | Get Spreadsheet |
| Remington Arms Forums | 11 | Get Spreadsheet |
| Railway Forums | 10 | Get Spreadsheet |
| RC Crawler Forums | 10 | Get Spreadsheet |
| Road Trip Forums | 9 | Get Spreadsheet |
| Roku Forums | 9 | Get Spreadsheet |
| Rose Forums | 8 | Get Spreadsheet |
| RC Boat Forums | 8 | Get Spreadsheet |
| Ricoh Forums | 7 | Get Spreadsheet |
| Reverse Engineering Forums | 7 | Get Spreadsheet |
| Roland Forums | 7 | Get Spreadsheet |
| RC Forums | 6 | Get Spreadsheet |
| Renewable Energy Forums | 5 | Get Spreadsheet |
| Rosacea Forums | 5 | Get Spreadsheet |
| Replica Watch Forums | 4 | Get Spreadsheet |
| Rottweiler Forums | 3 | Get Spreadsheet |
| Riding Gear Forums | 29 | Get Spreadsheet |
| Rimfire Forums | 18 | Get Spreadsheet |
| Rainbow Bridge Forums | 17 | Get Spreadsheet |
| Revolver Forums | 16 | Get Spreadsheet |
| Rhode Island Forums | 15 | Get Spreadsheet |
| Recumbent Bike Forums | 14 | Get Spreadsheet |
| Role Playing Game Forums | 13 | Get Spreadsheet |
| Royal Family Forums | 12 | Get Spreadsheet |
| Resident Evil Forums | 12 | Get Spreadsheet |
| RC Truck Forums | 12 | Get Spreadsheet |
| Railway Modelling Forums | 11 | Get Spreadsheet |
| Rockhounding Forums | 11 | Get Spreadsheet |
| Range Rover Evoque Forums | 11 | Get Spreadsheet |
| Red Dead Redemption 2 Forums | 10 | Get Spreadsheet |
| Russia Forums | 10 | Get Spreadsheet |
| Roller Coaster Forums | 10 | Get Spreadsheet |
| RV Repair Forums | 10 | Get Spreadsheet |
| Rock Music Forums | 9 | Get Spreadsheet |
| Royal Enfield Forums | 9 | Get Spreadsheet |
| Renault Forums | 9 | Get Spreadsheet |
| RPG Maker Forums | 9 | Get Spreadsheet |
| Resort Forums | 9 | Get Spreadsheet |
| Royal Navy Forums | 8 | Get Spreadsheet |
| Railroad Forums | 8 | Get Spreadsheet |
| Roulette Forums | 7 | Get Spreadsheet |
| Roblox Forums | 7 | Get Spreadsheet |
| RC Tank Forums | 7 | Get Spreadsheet |
| Rigging Forums | 7 | Get Spreadsheet |
| Reggae Forums | 7 | Get Spreadsheet |
| Ruby on Rails Forums | 6 | Get Spreadsheet |
| Rivian Forums | 6 | Get Spreadsheet |
| Retro Game Forums | 6 | Get Spreadsheet |
| Royal Caribbean Forums | 6 | Get Spreadsheet |
| Rap Battle Forums | 6 | Get Spreadsheet |
| ROV Forums | 6 | Get Spreadsheet |
| RuneScape Forums | 6 | Get Spreadsheet |
| Ruger Mark Forums | 6 | Get Spreadsheet |
| Royal Air Force Forums | 6 | Get Spreadsheet |
| Romania Forums | 6 | Get Spreadsheet |
| Raleigh Forums | 6 | Get Spreadsheet |
| Recording Studio Forums | 6 | Get Spreadsheet |
| Rum Forums | 5 | Get Spreadsheet |
| Rock Crawling Forums | 5 | Get Spreadsheet |
| Rocket League Forums | 5 | Get Spreadsheet |
| Ripple Forums | 5 | Get Spreadsheet |
| Rangers FC Forums | 5 | Get Spreadsheet |
| Rihanna Forums | 5 | Get Spreadsheet |
| Range Rover Velar Forums | 5 | Get Spreadsheet |
| Roatan Forums | 5 | Get Spreadsheet |
| RLS Forums | 5 | Get Spreadsheet |
| Rogers Forums | 5 | Get Spreadsheet |
| React Forums | 5 | Get Spreadsheet |
| Richmond Forums | 5 | Get Spreadsheet |
| Realme Forums | 5 | Get Spreadsheet |
| Romance Novel Forums | 4 | Get Spreadsheet |
| Riverdale Forums | 4 | Get Spreadsheet |
| Rotherham United FC Forums | 4 | Get Spreadsheet |
| Reiki Forums | 4 | Get Spreadsheet |
| Rangefinder Forums | 4 | Get Spreadsheet |
| Real Madrid Forums | 4 | Get Spreadsheet |
| Reincarnation Forums | 4 | Get Spreadsheet |
| Rolling Stones Forums | 3 | Get Spreadsheet |