I run H Air and Air Africa.
For H Air, I've been trying to get more reputation points by hitting small countries. However, I'm out of bases, and mostly out of routes.
For Air Africa, I was planning to connect lots of Africa, but everything is so poor and insular that I've switched to focusing on larger countries. Nigeria and Brazil both don't allow international connections, so while I've got a largish presence there, it's a dead-end route-wise. If you guys want to connect to those bases, go ahead, but beware that passengers will only pass through to the local country, not other connections.
As for next steps, I think Air Africa might have another base, and maybe I'll put it in Florida?
I expect the new ally in Portugal will want a northern east coast US base. It would complement the almost entirely eastern facing routes from the base.
What kind of strategy are you thinking of? I've been mostly doing bases in 1M+ pop, opened country, preferably with passenger buffs, but mainly ones that don't already have massive players based there.