Collocations for indulge - verb

occasionally
freely

be able to, be free to, can

in
She was free to indulge in a little romantic daydreaming.

with
For a special treat, indulge yourself with one of these luxury desserts.

Indulge is used with these nouns as the object:
appetite, child, desire, fantasy, hobby, love, passion, taste, vice, whim