Getting Dynamic Initialized recordList

public class RecordListUtility {
    
 public static String getIntializedRecordList(String objectName, Set fieldNames, String listVariable, Integer limitRows) {
        String sqlString = 'Select ';
        for(String field : fieldNames) {
            sqlString += field + ', ';
        }
        sqlString = sqlString.substring(0, sqlString.length() - 2);
        sqlString += ' from ' + objectName + ' limit '+ limitRows;
        
        List objectRecordList = Database.Query(sqlString); 
        
        String recordListToReturn = 'List '+listVariable+' = new List();';
        for(Sobject s : objectRecordList) {
            recordListToReturn += listVariable +'.add(new ' + objectName + '(';
            for(String field : fieldNames) {
                Schema.DisplayType fieldDisplayType = SchemaCache.getFieldDescribe(objectName, field).getType();
                String customFieldType = getCustomFieldType(fieldDisplayType);
                if(customFieldType == 'str') {
                    recordListToReturn += field + ' = \'' + s.get(field) + '\', ';
                } else {
                    recordListToReturn += field + ' = ' + s.get(field) + ', ';
                }
                
            }
            recordListToReturn = recordListToReturn.substring(0, recordListToReturn.length() - 2);
            recordListToReturn += '));';
        }
        recordListToReturn += 'insert ' + listVariable +';';
        return recordListToReturn;
    }
    
    private Static String getCustomFieldType(Schema.DisplayType fieldType) {
         String customFieldType;
          
         Set stringTypes = new Set();
         stringTypes.add(Schema.DisplayType.Reference);
         stringTypes.add(Schema.DisplayType.ID);
         stringTypes.add(Schema.DisplayType.String);
         stringTypes.add(Schema.DisplayType.Email);
         stringTypes.add(Schema.DisplayType.URL);
         stringTypes.add(Schema.DisplayType.Picklist);
         stringTypes.add(Schema.DisplayType.Phone);
         
         Set numberTypes = new Set();
         numberTypes.add(Schema.DisplayType.Double);
         numberTypes.add(Schema.DisplayType.Percent);
         numberTypes.add(Schema.DisplayType.Integer);
         numberTypes.add(Schema.DisplayType.Currency);
           
         if(fieldType == Schema.DisplayType.MultiPicklist) {
          customFieldType = 'str';
         } else if(stringTypes.contains(fieldType)) {
          customFieldType = 'str'; 
         } else if(numberTypes.contains(fieldType)) {
          customFieldType = 'num';  
         } else if(fieldType == Schema.DisplayType.Boolean){
          customFieldType = 'bool';
         } else if(fieldType == Schema.DisplayType.Date || fieldType == Schema.DisplayType.DateTime){
          if(fieldType == Schema.DisplayType.DateTime) {
           customFieldType = 'dateTimeType';
          } else {
           customFieldType = 'dateType';
          }
         } 
         return customFieldType;
    }
}

Please refer SchemaCache class here.
Example
Create a RecordListUtilityExample class which can use RecordListUtility class

public class RecordListUtilityExample {    
    public String getContactRecordList() {
        return RecordListUtility.getIntializedRecordList('Contact', new Set{'Name', 'Id'}, 'contactList', 10);
    }
}

Now create a RecordListUtilityExample Visualforce page

   
  {!IntializedContactRecordList}

Now preview this page and observe the result.