You can use pellets as treats, myself when socializing with my bunnies. I start with just letting them get used with me and learn their boundaries + signals .
Often I push them a bit far, I end up getting bitten. But that just help me to learn how far they tolerate and how far they will allow anyone to interact with them.
I rather be the only one to get bitten then anyone in my family or strangers. Maybe that’s why I’m at least been bitten once by all my bunnies, during their life. Not something I recommend to do. It’s just that I often have small kids that handle my bunnies, so I truly need to know how much they can tolerate or what can make them bite. For example one will bite because he get overexcited when given treats while one will bite because he can feel cornered.
But with kits it help a lot to just spend many hours with your bunny. At least me being a lazy potato often let my bunnies be up in the bed while I’m reading a book.
So they can jump up on me and explore everything. So they get used with me while I’m at their level. I often when they are kit teach them to get used with being picked up and handled, but they will always get treats to munch on.
So you can push a little on his boundaries but this should only be short times, just a few seconds and let him get use. Slowly building up to how much he can tolerate, but it help a lot with treats ( pellets or cuddles).
If I was you I would start with trying to pet him and not force to take him, see if he will react to pellets as treats. Often my bunnies will ignore the pellets in their bowls and beg for me to give them a treat instead. They don’t care that I’m giving them the same pellets that are in the bowl
Also every time picking your bunny up, make sure to give a positive reinforcement, already from the start.
Last time I was at the vet, my indoor bunny jumped up in the veterinarian arms. When the vet tried to put him back on the table he jumped up again.
Snuggling up and giving kisses (acting all cute to get what he wants), because he hate going to the veterinarian and standing on the table.