Each of these three fund companies has its own merits. Choosing a fund mainly depends on the stock selection and operation capabilities of the fund manager and his team, the fund's shareholdings, the industry segmentation of shareholdings, risk prevention, etc.
No need to compare fund companies.
In addition, investing in stock funds is actually investing in stocks. If you plan to invest 200 yuan per month, it is recommended that you choose an index fund for fixed investment. The risk is lower than actively allocated or mixed stock funds.
If you want me to recommend, China Small and Medium Enterprises Board can be considered.
Funds have risks, so investment needs to be done with caution.