I will start at the end, as I wanted to say that the Yoyo is simply not worth your money in terms of comfort for your baby - and the more so at 5 months. It is incredibly slanted, so the child is kind of hanging by the harness, and no lie-flat there PLUS a small seat surface that the head will grow out and over sooner. If you don't need the lie flat, or don't mind waiting till next summer, I would definitely rather go for the Bugaboo Butterfly or the Joolz Aer which are incomparably larger and comfier in the seat, having 10 cm+ longer backrests.
Next in line, you made quite a nice list of small reversible strollers, out of which I will say the Melio is not worth getting as its frame is incredibly loose and not much of quality; the Bee 6 I find too large after folding and the design simply a bit old already, even if pretty - the lack of leg rest is also not a win there; and the Hub Plus probably too, as it is a very nice stroller with a nice push, just the seat doesn't last parents as long as they'd want to. If you, however, don't mind swapping it around 1.5-2 years, then the Hub is really a good, comfy choice.
I personally would choose the Mios as I had it already for a longer time as I was very very happy with it. The frame is very nicely made, and so is the suspension. A drawback you might find is that the canopy in the lie-flat position will not be enough on a very hot day, but I just got a sunshade usable in the reversed position and was very happy with that afterward.
The Eezy S-Twist Plus is a nice choice if the smaller the stroller gets, the better for you is your priority. The hood is even smaller there in the lie flat, however, and the push I find more comfortable with the Mios.
Overall nice choices, though, and I hope I helped!