Need help on breeding

i have a charolais heifer that we will be breeding in april and would like some opinions on some bulls...we are thinking about using tyson or tiny tim, and also thought about thriller but wasnt sure if hes calving ease or not...i was just wanting to know what would be best for a first calf heifer that wont kill her and could have a decent calf...

jakes proud jazz is a good one on charolais.