There are

  a

Determiner

  variety

Noun

  of

Adposition

  different

Adjective

  types

Noun

,  probably

Adverb

  not

🚫

Particle

  homologous

Adjective

,  and

Coordinating conjunction

  serving

Verb

  various

Adjective

  functions

Noun

.

There are a variety of different types, probably not homologous, and serving various functions.

There are a variety of different types, probably not homologous, and serving various functions.