Help me figure out best flights Miami → Tanzania

Hey all, trying to piece together flights for a June trip and could use some help.

• Flying out of Miami (MIA) June 4th or 5th (prefer night departure)
• Need to be in Kilimanjaro (JRO) June 11–19
• Flying back from Zanzibar (ZNZ) on June 19
• Need to be back in Miami by night of June 21

Looking to do a cool layover somewhere on the way (not just the fastest route, but not trying to suffer with crazy travel times either).

Anyone done a similar route or have good airline/routing suggestions? Appreciate any help 🙏