The best way is to ask them directly. Not all employers provide apprenticeships, because they might not have the resources needed to support you to get qualified. So before you take on a job, you should make sure your employer knows you don’t just want to be a labourer.
Your job interview is a good time to let your future boss know about your plans for the future, so they know from the start that your goal is to get an apprenticeship.
Remember, an apprenticeship is something you earn. Your boss will usually want to get to know you before they commit to helping you get qualified. Most trainees start by getting a job, which gives them the chance to show the employer they’d make a good apprentice.