In Toulouse there are mainly two airfields :
Lasborde and Muret.
Auto information is French only, yes.
But you could very well fly only on days with a controller. They're there 6 days per week or 7 days per week.
You don't join a school, actually, in spite of Toulouse being the European or even world capital for civil aviation, there is not one professional school there. The closest one is in Agen (1h30 by car). You join an airclub (aeroclub).
Most airclubs will have Robin Aircraft, some will have a C172 or two.
Start by having a look at the following clubs :
Lasbordes:
Aeroclub Toulouse Midi Pyrénées : the most expensive airclub in the area, with SR20 aircraft used for IR training.
Ailes toulousaines : cheapest airclub, with robin and tecnam AC
Muret:
Aéroclub Clément Ader : large airclub with 1 C172
Aéroclub Jean Mermoz, Aéroclub Jean Marie Bonafé : worth having a look as well, the latter being very inexpensive and has a C182 as well.
You should be able to find an FI with good english command at almost every club.
Many FIs here are wannabee professionals so they typically have a CPL IR ME, which required an ICAO lvl >4 in english.
ATC will not be very used to english, for VFR traffic at least.
I used to try to speak english on a few flights, most of the answers I got were half french half english..