Tbh I’ve not had any issues booking clinical placements. Are you looking for these for this summer? In which case I do tend to book them like a year in advance because they do get booked up, particularly in areas around vet schools. Large animal may need even more than a year - I booked my June 2024 farm placement back in August 2022, and that was the first availability they had and it was only because I pestered a vet I saw a few times throughout my preclinical ones. I’ve not had any issues with smallies though, even around Liverpool. Calling would be more effective than emails though (personally I’ve not had to call though) as you get a straight answer and emails are easily missed/ignored. Try fb groups like VetWings too, you could find placements with free or cheap accommodation.