Hi Doom_Slayer here,
I connected my lap and pc in chrome to the same email but I only have like twitterbird,burgerturtle and another slime in lap which I got from the lap,and the other rare ones in pc which I got from pc,so please help me on doing both accounts one and get my bromons including twitterbird on every device of my account.
with regards.
Welcome to the community, @Doom_Slayer!
I understand your problem, but sadly to tell you that Bro-Mon doesn’t have progress sync. The progress you made will only stay at one device, not anywhere else 
So either you need to grind both or just grind one…
Welcome! Progress is not saved in Bro-Mon , even on the same account
I do think they are working on it though
saaammme i want my moss bear on my chromebook but it is only on my pc
Welcome to the community!!!