I have no great experience, but had 4 go broody on me in last few weeks, tried to remove them for a few days and finally caved and got some eggs for them to sit on.
I had problems when they got up to go relieve themselves and eat and drink, then the other hens jumped on nests, and 2 eggs got broken, and it was a mess. I took a chance Sunday and moved them to my grow out pen (had nesting boxes in it), eggs were warm on move and while the girls all 4 gave me "what-for" they eventually ended up sitting on the nests provided for them. They have had no issues with other hens stealing their nests, no more broken eggs. And my hens seem relieved not to have their larger flock mates messing with their eggs.
I haven't candled, I tried, couldn't see anything, and decided to wait it out. I have checked eggs gently for cracks, etc. and they are good. My golden sebright (I didn't think they went broody) is brooding with my EE they are sharing the nest constantly. The other two are a d'uccle and old english game. I have 10 eggs left between the four of them, and keeping my fingers crossed. They are in that coop with 15 5 and 6 week olds and 2 Silkies. I am hoping that is sufficient to keep them safe until the 5-6 week olds are big enough to integrate into entire flock. Then I will put everyone back together.
I feel that managing my birds sometimes feels like a full time job, I have a rather large flock, and can section the runs, and 4 different parts of my main coop off (total 12x24 foot of coop, much larger run). But, I love it. Good luck with your birds.