I would suggest if possible get poems sg (open Cash Management Acct) so it is 0% sales charge all the way. In Spore so far below 3 I found 0 sales charge and platform fee
1. dollarDex. They only do UT business
2. poems sg. They do many services besides UT
3. utrade (this I found recently under UOB Kian Hian). They do many services besides UT
4. Endowus is a bit unique as it does return any fund trailer fee rebate they got to customers but not all funds have this and their fund selection is smaller than say FSM,dollarDex,poems. They only do UT business.

But the king of UT is still FSM in terms of fund selection but they charge platform fee which is the downside.

Yes I'm Sporean and invest in UT many years.