'plenty of' vs 'many' vs 'a lot of'

[learning_english]

She has plenty of / many / a lot of/much fruits.

Which one could be appropriate in my sentence? and what would be the difference in meaning?

Please help me.
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Please let me know if I have made any mistakes in any of my sentences.

[Mister Micawber]

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'Fruit' is normally used uncountably (Fruit is delicious), but the plural countable 'fruits' occasionally occurs when speaking of different types (Cuba grows the following fruits: mangos, papayas and bananas).

Since you have elected to use the countable plural, you can use these:

She has plenty of / many / a lot of/ fruits.

Their meanings are the same.
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Canadian-American native speaker
who teaches English for a living at Mister Micawber's
ESL cafe: Interview with Mister Micawber