Bespeak rhymes with:
misspeak, respeak, speak, speake, mcpeak, mcpeake, mcpeek, misspeak, paek, peak, peake, peek, pique, respeak, speak, speake
Bespeak sounds like:
backpack, backpacks, backups, bagpipes, bake-offs, bespeaks, biceps, bishop's, bishops, bishops', bookshops, boskovich, bukavu's, bukovsky, busboys