Also YouTube videos were helpful!
We used the go diaper free mini potty and it worked for us. Honestly I would go for a top hat or small 6x6 in rubbermaid bowl next go around for convenience. That being said 8/10 times we would just hold him over the sink or toilet directly (mostly sink).
Just started my 3 month old boy and we're at 90% catches tho we haven't left home yet so I'm not sure what to do travel wise now that he's accustomed to EC. We got this seat reducer PandaEar Portable-Travel Toilet Training Potty Seat: Safe Urine Guard Durable Anti-Slip Rubber Rim | Hanging Ring & Bonus Hook | Baby Boys Girls Toddlers Kids Infants | Fits Round & Oval Chair https://a.co/d/g9rjBpT